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임상연구에 필요한 통계 분석
http://www.slideshare.net/mothersafe/ss-16208377
카이제곱 분포 임계치
http://ezstat.snu.ac.kr/textbook_sources/chapter_21.pdf
카이제곱 검정 chi-square test
http://dermabae.tistory.com/173
카이제곱분포표
http://ai-times.tistory.com/396
http://www.6025.co.kr/statistics/ka.asp
R 로 해보면
http://www.slideshare.net/yoonani/09-30176401
p-value 가 크면
귀무가설이 사실이라는 가정하에서 이러한 현상이 발생할 가능성이 많다는 의미임
따라서 p-value > a (유의수준) 이면 귀무가설 채택
공분산, 상관계수 공식
http://terms.naver.com/entry.nhn?docId=1109629&cid=40942&categoryId=32204
-- 계정 복구
USE master
GO
IF OBJECT_ID ('sp_hexadecimal') IS NOT NULL
DROP PROCEDURE sp_hexadecimal
GO
CREATE PROCEDURE sp_hexadecimal
@binvalue varbinary(256),
@hexvalue varchar (514) OUTPUT
AS
DECLARE @charvalue varchar (514)
DECLARE @i int
DECLARE @length int
DECLARE @hexstring char(16)
SELECT @charvalue = '0x'
SELECT @i = 1
SELECT @length = DATALENGTH (@binvalue)
SELECT @hexstring = '0123456789ABCDEF'
WHILE (@i <= @length)
BEGIN
DECLARE @tempint int
DECLARE @firstint int
DECLARE @secondint int
SELECT @tempint = CONVERT(int, SUBSTRING(@binvalue,@i,1))
SELECT @firstint = FLOOR(@tempint/16)
SELECT @secondint = @tempint - (@firstint*16)
SELECT @charvalue = @charvalue +
SUBSTRING(@hexstring, @firstint+1, 1) +
SUBSTRING(@hexstring, @secondint+1, 1)
SELECT @i = @i + 1
END
SELECT @hexvalue = @charvalue
GO
IF OBJECT_ID ('sp_help_revlogin') IS NOT NULL
DROP PROCEDURE sp_help_revlogin
GO
CREATE PROCEDURE sp_help_revlogin @login_name sysname = NULL AS
DECLARE @name sysname
DECLARE @type varchar (1)
DECLARE @hasaccess int
DECLARE @denylogin int
DECLARE @is_disabled int
DECLARE @PWD_varbinary varbinary (256)
DECLARE @PWD_string varchar (514)
DECLARE @SID_varbinary varbinary (85)
DECLARE @SID_string varchar (514)
DECLARE @tmpstr varchar (1024)
DECLARE @is_policy_checked varchar (3)
DECLARE @is_expiration_checked varchar (3)
DECLARE @defaultdb sysname
IF (@login_name IS NULL)
DECLARE login_curs CURSOR FOR
SELECT p.sid, p.name, p.type, p.is_disabled, p.default_database_name, l.hasaccess, l.denylogin FROM sys.server_principals p LEFT JOIN sys.syslogins l
ON ( l.name = p.name ) WHERE p.type IN ( 'S', 'G', 'U' ) AND p.name <> 'sa'
ELSE
DECLARE login_curs CURSOR FOR
SELECT p.sid, p.name, p.type, p.is_disabled, p.default_database_name, l.hasaccess, l.denylogin FROM sys.server_principals p LEFT JOIN sys.syslogins l
ON ( l.name = p.name ) WHERE p.type IN ( 'S', 'G', 'U' ) AND p.name = @login_name
OPEN login_curs
FETCH NEXT FROM login_curs INTO @SID_varbinary, @name, @type, @is_disabled, @defaultdb, @hasaccess, @denylogin
IF (@@fetch_status = -1)
BEGIN
PRINT 'No login(s) found.'
CLOSE login_curs
DEALLOCATE login_curs
RETURN -1
END
SET @tmpstr = '/* sp_help_revlogin script '
PRINT @tmpstr
SET @tmpstr = '** Generated ' + CONVERT (varchar, GETDATE()) + ' on ' + @@SERVERNAME + ' */'
PRINT @tmpstr
PRINT ''
WHILE (@@fetch_status <> -1)
BEGIN
IF (@@fetch_status <> -2)
BEGIN
PRINT ''
SET @tmpstr = '-- Login: ' + @name
PRINT @tmpstr
IF (@type IN ( 'G', 'U'))
BEGIN -- NT authenticated account/group
SET @tmpstr = 'CREATE LOGIN ' + QUOTENAME( @name ) + ' FROM WINDOWS WITH DEFAULT_DATABASE = [' + @defaultdb + ']'
END
ELSE BEGIN -- SQL Server authentication
-- obtain password and sid
SET @PWD_varbinary = CAST( LOGINPROPERTY( @name, 'PasswordHash' ) AS varbinary (256) )
EXEC sp_hexadecimal @PWD_varbinary, @PWD_string OUT
EXEC sp_hexadecimal @SID_varbinary,@SID_string OUT
-- obtain password policy state
SELECT @is_policy_checked = CASE is_policy_checked WHEN 1 THEN 'ON' WHEN 0 THEN 'OFF' ELSE NULL END FROM sys.sql_logins WHERE name = @name
SELECT @is_expiration_checked = CASE is_expiration_checked WHEN 1 THEN 'ON' WHEN 0 THEN 'OFF' ELSE NULL END FROM sys.sql_logins WHERE name = @name
SET @tmpstr = 'CREATE LOGIN ' + QUOTENAME( @name ) + ' WITH PASSWORD = ' + @PWD_string + ' HASHED, SID = ' + @SID_string + ', DEFAULT_DATABASE = [' + @defaultdb + ']'
IF ( @is_policy_checked IS NOT NULL )
BEGIN
SET @tmpstr = @tmpstr + ', CHECK_POLICY = ' + @is_policy_checked
END
IF ( @is_expiration_checked IS NOT NULL )
BEGIN
SET @tmpstr = @tmpstr + ', CHECK_EXPIRATION = ' + @is_expiration_checked
END
END
IF (@denylogin = 1)
BEGIN -- login is denied access
SET @tmpstr = @tmpstr + '; DENY CONNECT SQL TO ' + QUOTENAME( @name )
END
ELSE IF (@hasaccess = 0)
BEGIN -- login exists but does not have access
SET @tmpstr = @tmpstr + '; REVOKE CONNECT SQL TO ' + QUOTENAME( @name )
END
IF (@is_disabled = 1)
BEGIN -- login is disabled
SET @tmpstr = @tmpstr + '; ALTER LOGIN ' + QUOTENAME( @name ) + ' DISABLE'
END
PRINT @tmpstr
END
FETCH NEXT FROM login_curs INTO @SID_varbinary, @name, @type, @is_disabled, @defaultdb, @hasaccess, @denylogin
END
CLOSE login_curs
DEALLOCATE login_curs
RETURN 0
GO
EXEC sp_help_revlogin
go
SET NOCOUNT ON
GO
PRINT 'Using Master database'
USE master
GO
PRINT 'Checking for the existence of this procedure'
IF (SELECT OBJECT_ID('sp_generate_inserts','P')) IS NOT NULL --means, the procedure already exists
BEGIN
PRINT 'Procedure already exists. So, dropping it'
DROP PROC sp_generate_inserts
END
GO
CREATE PROC sp_generate_inserts
(
@table_name varchar(776), -- The table/view for which the INSERT statements will be generated using the existing data
@target_table varchar(776) = NULL, -- Use this parameter to specify a different table name into which the data will be inserted
@include_column_list bit = 1, -- Use this parameter to include/ommit column list in the generated INSERT statement
@from varchar(800) = NULL, -- Use this parameter to filter the rows based on a filter condition (using WHERE)
@include_timestamp bit = 0, -- Specify 1 for this parameter, if you want to include the TIMESTAMP/ROWVERSION column's data in the INSERT statement
@debug_mode bit = 0, -- If @debug_mode is set to 1, the SQL statements constructed by this procedure will be printed for later examination
@owner varchar(64) = NULL, -- Use this parameter if you are not the owner of the table
@ommit_images bit = 0, -- Use this parameter to generate INSERT statements by omitting the 'image' columns
@ommit_identity bit = 0, -- Use this parameter to ommit the identity columns
@top int = NULL, -- Use this parameter to generate INSERT statements only for the TOP n rows
@cols_to_include varchar(8000) = NULL, -- List of columns to be included in the INSERT statement
@cols_to_exclude varchar(8000) = NULL, -- List of columns to be excluded from the INSERT statement
@disable_constraints bit = 0, -- When 1, disables foreign key constraints and enables them after the INSERT statements
@ommit_computed_cols bit = 0 -- When 1, computed columns will not be included in the INSERT statement
)
AS
BEGIN
/***********************************************************************************************************
Procedure: sp_generate_inserts (Build 22)
(Copyright ? 2002 Narayana Vyas Kondreddi. All rights reserved.)
Purpose: To generate INSERT statements from existing data.
These INSERTS can be executed to regenerate the data at some other location.
This procedure is also useful to create a database setup, where in you can
script your data along with your table definitions.
Written by: Narayana Vyas Kondreddi
http://vyaskn.tripod.com
Acknowledgements:
Divya Kalra -- For beta testing
Mark Charsley -- For reporting a problem with scripting uniqueidentifier columns with NULL values
Artur Zeygman -- For helping me simplify a bit of code for handling non-dbo owned tables
Joris Laperre -- For reporting a regression bug in handling text/ntext columns
Tested on: SQL Server 7.0 and SQL Server 2000 and SQL Server 2005
Date created: January 17th 2001 21:52 GMT
Date modified: May 1st 2002 19:50 GMT
Email: vyaskn@hotmail.com
NOTE: This procedure may not work with tables with too many columns.
Results can be unpredictable with huge text columns or SQL Server 2000's sql_variant data types
Whenever possible, Use @include_column_list parameter to ommit column list in the INSERT statement, for better results
IMPORTANT: This procedure is not tested with internation data (Extended characters or Unicode). If needed
you might want to convert the datatypes of character variables in this procedure to their respective unicode counterparts
like nchar and nvarchar
ALSO NOTE THAT THIS PROCEDURE IS NOT UPDATED TO WORK WITH NEW DATA TYPES INTRODUCED IN SQL SERVER 2005 / YUKON
Example 1: To generate INSERT statements for table 'titles':
EXEC sp_generate_inserts 'titles'
Example 2: To ommit the column list in the INSERT statement: (Column list is included by default)
IMPORTANT: If you have too many columns, you are advised to ommit column list, as shown below,
to avoid erroneous results
EXEC sp_generate_inserts 'titles', @include_column_list = 0
Example 3: To generate INSERT statements for 'titlesCopy' table from 'titles' table:
EXEC sp_generate_inserts 'titles', 'titlesCopy'
Example 4: To generate INSERT statements for 'titles' table for only those titles
which contain the word 'Computer' in them:
NOTE: Do not complicate the FROM or WHERE clause here. It's assumed that you are good with T-SQL if you are using this parameter
EXEC sp_generate_inserts 'titles', @from = "from titles where title like '%Computer%'"
Example 5: To specify that you want to include TIMESTAMP column's data as well in the INSERT statement:
(By default TIMESTAMP column's data is not scripted)
EXEC sp_generate_inserts 'titles', @include_timestamp = 1
Example 6: To print the debug information:
EXEC sp_generate_inserts 'titles', @debug_mode = 1
Example 7: If you are not the owner of the table, use @owner parameter to specify the owner name
To use this option, you must have SELECT permissions on that table
EXEC sp_generate_inserts Nickstable, @owner = 'Nick'
Example 8: To generate INSERT statements for the rest of the columns excluding images
When using this otion, DO NOT set @include_column_list parameter to 0.
EXEC sp_generate_inserts imgtable, @ommit_images = 1
Example 9: To generate INSERT statements excluding (ommiting) IDENTITY columns:
(By default IDENTITY columns are included in the INSERT statement)
EXEC sp_generate_inserts mytable, @ommit_identity = 1
Example 10: To generate INSERT statements for the TOP 10 rows in the table:
EXEC sp_generate_inserts mytable, @top = 10
Example 11: To generate INSERT statements with only those columns you want:
EXEC sp_generate_inserts titles, @cols_to_include = "'title','title_id','au_id'"
Example 12: To generate INSERT statements by omitting certain columns:
EXEC sp_generate_inserts titles, @cols_to_exclude = "'title','title_id','au_id'"
Example 13: To avoid checking the foreign key constraints while loading data with INSERT statements:
EXEC sp_generate_inserts titles, @disable_constraints = 1
Example 14: To exclude computed columns from the INSERT statement:
EXEC sp_generate_inserts MyTable, @ommit_computed_cols = 1
***********************************************************************************************************/
SET NOCOUNT ON
--Making sure user only uses either @cols_to_include or @cols_to_exclude
IF ((@cols_to_include IS NOT NULL) AND (@cols_to_exclude IS NOT NULL))
BEGIN
RAISERROR('Use either @cols_to_include or @cols_to_exclude. Do not use both the parameters at once',16,1)
RETURN -1 --Failure. Reason: Both @cols_to_include and @cols_to_exclude parameters are specified
END
--Making sure the @cols_to_include and @cols_to_exclude parameters are receiving values in proper format
IF ((@cols_to_include IS NOT NULL) AND (PATINDEX('''%''',@cols_to_include) = 0))
BEGIN
RAISERROR('Invalid use of @cols_to_include property',16,1)
PRINT 'Specify column names surrounded by single quotes and separated by commas'
PRINT 'Eg: EXEC sp_generate_inserts titles, @cols_to_include = "''title_id'',''title''"'
RETURN -1 --Failure. Reason: Invalid use of @cols_to_include property
END
IF ((@cols_to_exclude IS NOT NULL) AND (PATINDEX('''%''',@cols_to_exclude) = 0))
BEGIN
RAISERROR('Invalid use of @cols_to_exclude property',16,1)
PRINT 'Specify column names surrounded by single quotes and separated by commas'
PRINT 'Eg: EXEC sp_generate_inserts titles, @cols_to_exclude = "''title_id'',''title''"'
RETURN -1 --Failure. Reason: Invalid use of @cols_to_exclude property
END
--Checking to see if the database name is specified along wih the table name
--Your database context should be local to the table for which you want to generate INSERT statements
--specifying the database name is not allowed
IF (PARSENAME(@table_name,3)) IS NOT NULL
BEGIN
RAISERROR('Do not specify the database name. Be in the required database and just specify the table name.',16,1)
RETURN -1 --Failure. Reason: Database name is specified along with the table name, which is not allowed
END
--Checking for the existence of 'user table' or 'view'
--This procedure is not written to work on system tables
--To script the data in system tables, just create a view on the system tables and script the view instead
IF @owner IS NULL
BEGIN
IF ((OBJECT_ID(@table_name,'U') IS NULL) AND (OBJECT_ID(@table_name,'V') IS NULL))
BEGIN
RAISERROR('User table or view not found.',16,1)
PRINT 'You may see this error, if you are not the owner of this table or view. In that case use @owner parameter to specify the owner name.'
PRINT 'Make sure you have SELECT permission on that table or view.'
RETURN -1 --Failure. Reason: There is no user table or view with this name
END
END
ELSE
BEGIN
IF NOT EXISTS (SELECT 1 FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_NAME = @table_name AND (TABLE_TYPE = 'BASE TABLE' OR TABLE_TYPE = 'VIEW') AND TABLE_SCHEMA = @owner)
BEGIN
RAISERROR('User table or view not found.',16,1)
PRINT 'You may see this error, if you are not the owner of this table. In that case use @owner parameter to specify the owner name.'
PRINT 'Make sure you have SELECT permission on that table or view.'
RETURN -1 --Failure. Reason: There is no user table or view with this name
END
END
--Variable declarations
DECLARE @Column_ID int,
@Column_List varchar(8000),
@Column_Name varchar(128),
@Start_Insert varchar(786),
@Data_Type varchar(128),
@Actual_Values varchar(8000), --This is the string that will be finally executed to generate INSERT statements
@IDN varchar(128) --Will contain the IDENTITY column's name in the table
--Variable Initialization
SET @IDN = ''
SET @Column_ID = 0
SET @Column_Name = ''
SET @Column_List = ''
SET @Actual_Values = ''
IF @owner IS NULL
BEGIN
SET @Start_Insert = 'INSERT INTO ' + '' + RTRIM(COALESCE(@target_table,@table_name)) + ''
END
ELSE
BEGIN
SET @Start_Insert = 'INSERT ' + '' + RTRIM(COALESCE(@target_table,@table_name)) + ''
END
--To get the first column's ID
SELECT @Column_ID = MIN(ORDINAL_POSITION)
FROM INFORMATION_SCHEMA.COLUMNS (NOLOCK)
WHERE TABLE_NAME = @table_name AND
(@owner IS NULL OR TABLE_SCHEMA = @owner)
--Loop through all the columns of the table, to get the column names and their data types
WHILE @Column_ID IS NOT NULL
BEGIN
SELECT @Column_Name = ' '+COLUMN_NAME+' ',
@Data_Type = DATA_TYPE
FROM INFORMATION_SCHEMA.COLUMNS (NOLOCK)
WHERE ORDINAL_POSITION = @Column_ID AND
TABLE_NAME = @table_name AND
(@owner IS NULL OR TABLE_SCHEMA = @owner)
IF @cols_to_include IS NOT NULL --Selecting only user specified columns
BEGIN
IF CHARINDEX( '''' + SUBSTRING(@Column_Name,2,LEN(@Column_Name)-1) + '''',@cols_to_include) = 0
BEGIN
GOTO SKIP_LOOP
END
END
IF @cols_to_exclude IS NOT NULL --Selecting only user specified columns
BEGIN
select 'aaaa';
select @Column_Name, @cols_to_exclude, SUBSTRING(@Column_Name,2,LEN(@Column_Name)-1)
IF CHARINDEX( '''' + SUBSTRING(@Column_Name,2,LEN(@Column_Name)-1) + '''',@cols_to_exclude) <> 0
BEGIN
select 'match'
GOTO SKIP_LOOP
END
END
--Making sure to output SET IDENTITY_INSERT ON/OFF in case the table has an IDENTITY column
IF (SELECT COLUMNPROPERTY( OBJECT_ID(QUOTENAME(COALESCE(@owner,USER_NAME())) + '.' + @table_name),SUBSTRING(@Column_Name,2,LEN(@Column_Name) - 1),'IsIdentity')) = 1
BEGIN
IF @ommit_identity = 0 --Determing whether to include or exclude the IDENTITY column
SET @IDN = @Column_Name
ELSE
GOTO SKIP_LOOP
END
--Making sure whether to output computed columns or not
IF @ommit_computed_cols = 1
BEGIN
IF (SELECT COLUMNPROPERTY( OBJECT_ID(QUOTENAME(COALESCE(@owner,USER_NAME())) + '.' + @table_name),SUBSTRING(@Column_Name,2,LEN(@Column_Name) - 1),'IsComputed')) = 1
BEGIN
GOTO SKIP_LOOP
END
END
--Tables with columns of IMAGE data type are not supported for obvious reasons
IF(@Data_Type in ('image'))
BEGIN
IF (@ommit_images = 0)
BEGIN
RAISERROR('Tables with image columns are not supported.',16,1)
PRINT 'Use @ommit_images = 1 parameter to generate INSERTs for the rest of the columns.'
PRINT 'DO NOT ommit Column List in the INSERT statements. If you ommit column list using @include_column_list=0, the generated INSERTs will fail.'
RETURN -1 --Failure. Reason: There is a column with image data type
END
ELSE
BEGIN
GOTO SKIP_LOOP
END
END
--Determining the data type of the column and depending on the data type, the VALUES part of
--the INSERT statement is generated. Care is taken to handle columns with NULL values. Also
--making sure, not to lose any data from flot, real, money, smallmomey, datetime columns
SET @Actual_Values = @Actual_Values +
CASE
WHEN @Data_Type IN ('char','varchar','nchar','nvarchar')
THEN
'COALESCE('''''''' + REPLACE(RTRIM(' + @Column_Name + '),'''''''','''''''''''')+'''''''',''NULL'')'
WHEN @Data_Type IN ('datetime','smalldatetime','date')
THEN
'COALESCE('''''''' + RTRIM(CONVERT(varchar,' + @Column_Name + ',121))+'''''''',''NULL'')'
WHEN @Data_Type IN ('uniqueidentifier')
THEN
'COALESCE('''''''' + REPLACE(CONVERT(char(255),RTRIM(' + @Column_Name + ')),'''''''','''''''''''')+'''''''',''NULL'')'
WHEN @Data_Type IN ('text','ntext')
THEN
'COALESCE('''''''' + REPLACE(CONVERT(char(8000),' + @Column_Name + '),'''''''','''''''''''')+'''''''',''NULL'')'
WHEN @Data_Type IN ('binary','varbinary')
THEN
'COALESCE(RTRIM(CONVERT(char,' + 'CONVERT(int,' + @Column_Name + '))),''NULL'')'
WHEN @Data_Type IN ('timestamp','rowversion')
THEN
CASE
WHEN @include_timestamp = 0
THEN
'''DEFAULT'''
ELSE
'COALESCE(RTRIM(CONVERT(char,' + 'CONVERT(int,' + @Column_Name + '))),''NULL'')'
END
WHEN @Data_Type IN ('float','real','money','smallmoney')
THEN
'COALESCE(LTRIM(RTRIM(' + 'CONVERT(char, ' + @Column_Name + ',2)' + ')),''NULL'')'
ELSE
'COALESCE(LTRIM(RTRIM(' + 'CONVERT(char, ' + @Column_Name + ')' + ')),''NULL'')'
END + '+' + ''',''' + ' + '
--Generating the column list for the INSERT statement
SET @Column_List = @Column_List + @Column_Name + ','
SKIP_LOOP: --The label used in GOTO
SELECT @Column_ID = MIN(ORDINAL_POSITION)
FROM INFORMATION_SCHEMA.COLUMNS (NOLOCK)
WHERE TABLE_NAME = @table_name AND
ORDINAL_POSITION > @Column_ID AND
(@owner IS NULL OR TABLE_SCHEMA = @owner)
--Loop ends here!
END
--To get rid of the extra characters that got concatenated during the last run through the loop
SET @Column_List = LEFT(@Column_List,len(@Column_List) - 1)
SET @Actual_Values = LEFT(@Actual_Values,len(@Actual_Values) - 6)
IF LTRIM(@Column_List) = ''
BEGIN
RAISERROR('No columns to select. There should at least be one column to generate the output',16,1)
RETURN -1 --Failure. Reason: Looks like all the columns are ommitted using the @cols_to_exclude parameter
END
--Forming the final string that will be executed, to output the INSERT statements
IF (@include_column_list <> 0)
BEGIN
SET @Actual_Values =
'SELECT ' +
CASE WHEN @top IS NULL OR @top < 0 THEN '' ELSE ' TOP ' + LTRIM(STR(@top)) + ' ' END +
'''' + RTRIM(@Start_Insert) +
' ''+' + '''(' + RTRIM(@Column_List) + '''+' + ''')''' +
' +''VALUES(''+ ' + @Actual_Values + '+'')''' + ' ' +
COALESCE(@from,' FROM ' + CASE WHEN @owner IS NULL THEN '' ELSE '' + LTRIM(RTRIM(@owner)) + '.' END + '' + rtrim(@table_name) + '' + '(NOLOCK)')
END
ELSE IF (@include_column_list = 0)
BEGIN
SET @Actual_Values =
'SELECT ' +
CASE WHEN @top IS NULL OR @top < 0 THEN '' ELSE ' TOP ' + LTRIM(STR(@top)) + ' ' END +
'''' + RTRIM(@Start_Insert) +
' '' +''VALUES(''+ ' + @Actual_Values + '+'')''' + ' ' +
COALESCE(@from,' FROM ' + CASE WHEN @owner IS NULL THEN '' ELSE '' + LTRIM(RTRIM(@owner)) + '.' END + '' + rtrim(@table_name) + '' + '(NOLOCK)')
END
--Determining whether to ouput any debug information
IF @debug_mode =1
BEGIN
PRINT '/*****START OF DEBUG INFORMATION*****'
PRINT 'Beginning of the INSERT statement:'
PRINT @Start_Insert
PRINT ''
PRINT 'The column list:'
PRINT @Column_List
PRINT ''
PRINT 'The SELECT statement executed to generate the INSERTs'
PRINT @Actual_Values
PRINT ''
PRINT '*****END OF DEBUG INFORMATION*****/'
PRINT ''
END
PRINT '--INSERTs generated by ''sp_generate_inserts'' stored procedure written by Vyas'
PRINT '--Build number: 22'
PRINT '--Problems/Suggestions? Contact Vyas @ vyaskn@hotmail.com'
PRINT '--http://vyaskn.tripod.com'
PRINT ''
PRINT 'SET NOCOUNT ON'
PRINT ''
--Determining whether to print IDENTITY_INSERT or not
IF (@IDN <> '')
BEGIN
PRINT 'SET IDENTITY_INSERT ' + QUOTENAME(COALESCE(@owner,USER_NAME())) + '.' + QUOTENAME(@table_name) + ' ON'
PRINT 'GO'
PRINT ''
END
IF @disable_constraints = 1 AND (OBJECT_ID(QUOTENAME(COALESCE(@owner,USER_NAME())) + '.' + @table_name, 'U') IS NOT NULL)
BEGIN
IF @owner IS NULL
BEGIN
SELECT 'ALTER TABLE ' + QUOTENAME(COALESCE(@target_table, @table_name)) + ' NOCHECK CONSTRAINT ALL' AS '--Code to disable constraints temporarily'
END
ELSE
BEGIN
SELECT 'ALTER TABLE ' + QUOTENAME(@owner) + '.' + QUOTENAME(COALESCE(@target_table, @table_name)) + ' NOCHECK CONSTRAINT ALL' AS '--Code to disable constraints temporarily'
END
PRINT 'GO'
END
PRINT ''
PRINT 'PRINT ''Inserting values into ' + '' + RTRIM(COALESCE(@target_table,@table_name)) + '' + ''''
--All the hard work pays off here!!! You'll get your INSERT statements, when the next line executes!
EXEC (@Actual_Values)
PRINT 'PRINT ''Done'''
PRINT ''
IF @disable_constraints = 1 AND (OBJECT_ID(QUOTENAME(COALESCE(@owner,USER_NAME())) + '.' + @table_name, 'U') IS NOT NULL)
BEGIN
IF @owner IS NULL
BEGIN
SELECT 'ALTER TABLE ' + QUOTENAME(COALESCE(@target_table, @table_name)) + ' CHECK CONSTRAINT ALL' AS '--Code to enable the previously disabled constraints'
END
ELSE
BEGIN
SELECT 'ALTER TABLE ' + QUOTENAME(@owner) + '.' + QUOTENAME(COALESCE(@target_table, @table_name)) + ' CHECK CONSTRAINT ALL' AS '--Code to enable the previously disabled constraints'
END
PRINT 'GO'
END
PRINT ''
IF (@IDN <> '')
BEGIN
PRINT 'SET IDENTITY_INSERT ' + QUOTENAME(COALESCE(@owner,USER_NAME())) + '.' + QUOTENAME(@table_name) + ' OFF'
PRINT 'GO'
END
PRINT 'SET NOCOUNT OFF'
SET NOCOUNT OFF
RETURN 0 --Success. We are done!
END
GO
PRINT 'Created the procedure'
GO
--Mark procedure as system object
EXEC sys.sp_MS_marksystemobject sp_generate_inserts
GO
--PRINT 'Granting EXECUTE permission on sp_generate_inserts to all users'
--GRANT EXEC ON sp_generate_inserts TO public
SET NOCOUNT OFF
GO
PRINT 'Done'
go
use dba
go
exec sp_generate_inserts 'AT_ACL',@ommit_identity = 1
CLR 을 이용한 튜닝 입니다. 이번 쿼리는 약 9배 정도의 성능향상이 있습니다.
아래 쿼리가 기존의 fn_split 을 사용할 경우 9초, CLR 을 이용한 fn_split 는 1초 입니다.
그런데 이번에는 약간의 주의사항이 있습니다. 적용시 개발과 함께 살펴봐야 할 듯 합니다.
주의사항
아래 참고 URL 을 읽어보니 table return function 의 경우 unicode 만 리턴 합니다. 만약 non-unicode 로 반드시 받아야 한다면
1) sql 이나 application 에서 결과값을 varchar (8000) 으로 convert 해 써야 합니다.
https://msdn.microsoft.com/en-us/library/ms131103(v=SQL.100).aspx
2) 들어오는 입력 인자는 8000자를 넘어도 상관 없지만 나오는 출력 컬럼은 4000자를 넘지 못합니다.
테스트 쿼리는 아래와 같습니다.
set nocount on
declare @source varchar(8000) = 'jfkdslafjldsa,fdsaf,dsa,f,sda,fd,,f,,asdf,f,ds,f,a,sfd,ds,af,dsa,fdsa,f,ght,wh,w,jh5,j,j,6w,j6,j6,j6,5t,agg,,,,' declare @delimiter char(1) = ',' select * from dbo.fn_split (@source, @delimiter) go
declare @source varchar(8000) = '' declare @delimiter char(1) = '' select * from dbo.fn_split (@source, @delimiter) go
declare @source varchar(8000) = 'a' declare @delimiter char(1) = '' select * from dbo.fn_split (@source, @delimiter) go
declare @source varchar(8000) = '' declare @delimiter char(1) = ',' select * from dbo.fn_split (@source, @delimiter) go
declare @source varchar(8000) = 'jfkdslafjldsa,fdsaf,dsa,f,sda,fd,,f,,asdf,f,ds,f,a,sfd,ds,af,dsa,fdsa,f,ght,wh,w,jh5,j,j,6w,j6,j6,j6,5t,agg,,,,' declare @delimiter char(1) = ',' declare @result varchar(8000) = '' declare @cnt int = 1 while (1=1) begin select @result = item from dbo.fn_split (@source, @delimiter) set @cnt = @cnt + 1 ; if @cnt >= 30000 break end
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기존 프로그램과 clr 프로그램을 살펴 보겠습니다.
기존 function | /* @source 를 @delimiter로 구분자로 하여 테이블 형태로 반환 */ CREATE function dbo.fn_split ( @source varchar(8000), @delimiter char(1) ) returns @array table(Item varchar(8000)) as begin if @source <> '' begin declare @Item varchar(8000) declare @thisPos int, @nextPos int, @totalLength int
select @thisPos = 1, @nextPos = charindex(@delimiter, @source, 1), @totalLength = len(@source)
while @thisPos <= @totalLength and @nextPos > 0 begin If @nextPos > @thisPos begin set @Item = substring(@source, @thisPos, @nextPos-@thisPos) if len(@Item) > 0 insert into @array select @Item end
select @thisPos = @nextPos + 1, @nextPos = charindex(@delimiter,@source,@thisPos) end
set @Item = substring(@source, @thisPos, @totalLength-@thisPos + 1) If len(@Item) > 0 insert into @array select @Item
end return end |
CLR | using System; using System.Data; using System.Collections; using System.Data.SqlClient; using System.Data.SqlTypes; using Microsoft.SqlServer.Server;
public partial class UserDefinedFunctions { [SqlFunction(Name = "fn_split", FillRowMethodName="FillRow", TableDefinition = "item nvarchar(4000)")] public static IEnumerable fn_split(SqlString source, SqlChars delimiter) { if (delimiter.Length == 0) { return new string[1] { source.Value }; } //return source.Value.Split(delimiter[0]); return source.Value.Split(new[]{delimiter[0]}, StringSplitOptions.RemoveEmptyEntries);
} public static void FillRow (object row, out SqlString str) { str = new SqlString((string)row); } } |
http://www.codeproject.com/Articles/680161/Getting-Started-With-SQL-Server-CLR-User-Defi
https://msdn.microsoft.com/en-us/library/ms131103.aspx
https://msdn.microsoft.com/ko-kr/library/ms131053(v=sql.120).aspx
https://support.microsoft.com/ko-kr/kb/281517
처음 8개 행에 최대 길이 컬럼이 있어야 한다. 아니면 255 이후 문자열이 잘린다.
-_-~ 아니면 regedit 로 이 8개를 더 크게 변경 하던지
Partition
PartitionScheme (function name)
PartitionCount
FileGroup
Schema Binding indexed View
Include
ColumnStore
Unique
UniqueConstraint
Primarykey
Filtered Index Definition
Disabled
IndexSize
index stat
physical stat
statistics update date
쓰는 인덱스 인지 안 쓰는 인덱스 인지 뭐 정보가 좀 필요할듯 해 만들었습니다.
치훈이가 이름 붙여줌...
믿고쓰는 김장애 선생님의 sp_helpindex2
장애나면 연락 하세요~ ^.^~
-- 자 갑니다. ~
STAT3 은 주석 처리 하세요~
용량 큰 테이블이 있으면 오래 걸립니다. ~
sql 2014
IF OBJECT_ID('SP_HELPINDEX2') IS NULL EXEC ('CREATE PROC SP_HELPINDEX2 AS SELECT 1 ') GO ALTER PROCEDURE SP_HELPINDEX2 @NAME NVARCHAR(4000) = '' AS SET NOCOUNT ON SET TRANSACTION ISOLATION LEVEL READ UNCOMMITTED -- SCRIPT BY MINSOUK KIM -- 01099670955 -- A.TO.Z@NAVERCORP.COM SELECT ISNULL(PS.TYPE_DESC, 'NORMAL') AS ISPTN ,PS.NAME AS PTNFUNCNAME ,D.PARTITIONCNT AS PTNCNT ,T1.TYPE_DESC ,FI.NAME AS FGNAME ,SCHEMA_NAME(SCHEMA_ID) AS SNAME ,T1.CREATE_DATE AS TBLCREDATE ,T1.NAME AS OBJNAME ,I.TYPE_DESC ISCLUSTERORHEAP ,I.NAME AS IXNAME ,INDEXSIZEKB AS IXSIZEKB ,SUBSTRING(B.INDEX_COLUMN_DESC, 3, 1000) AS IXDESC ,SUBSTRING(C.INCLUDE_COLUMN_DESC, 3, 1000) AS INCOLDESC ,STATS_DATE(i.object_id, i.index_id) AS [STATISTICUPDATEDATE] ,I.IS_UNIQUE ,I.IS_UNIQUE_CONSTRAINT ,I.IS_PRIMARY_KEY ,I.HAS_FILTER ,I.FILTER_DEFINITION ,I.IS_DISABLED ,STAT1.* ,STAT2.* --,STAT3.* -- , * FROM SYS.OBJECTS AS T1 INNER JOIN SYS.INDEXES AS I ON T1.[OBJECT_ID] = I.[OBJECT_ID] LEFT JOIN SYS.FILEGROUPS FI ON I.DATA_SPACE_ID = FI.DATA_SPACE_ID -- AND I.[TYPE] IN (0,1) LEFT JOIN SYS.PARTITION_SCHEMES PS ON I.DATA_SPACE_ID = PS.DATA_SPACE_ID OUTER APPLY ( SELECT TOP 100 PERCENT ', ' + AC.NAME + CASE WHEN IS_DESCENDING_KEY = 1 THEN ' DESC' ELSE ' ASC' END AS [text()] FROM SYS.INDEX_COLUMNS IC INNER JOIN SYS.ALL_COLUMNS AC ON IC.OBJECT_ID = AC.OBJECT_ID AND IC.COLUMN_ID = AC.COLUMN_ID WHERE IC.OBJECT_ID = I.OBJECT_ID AND IC.INDEX_ID = I.INDEX_ID AND IC.IS_INCLUDED_COLUMN = 0 ORDER BY IC.INDEX_COLUMN_ID FOR XML PATH('') ) B(INDEX_COLUMN_DESC) OUTER APPLY ( SELECT TOP 100 PERCENT ', ' + AC.NAME AS [text()] FROM SYS.INDEX_COLUMNS IC INNER JOIN SYS.ALL_COLUMNS AC ON IC.OBJECT_ID = AC.OBJECT_ID AND IC.COLUMN_ID = AC.COLUMN_ID WHERE IC.OBJECT_ID = I.OBJECT_ID AND IC.INDEX_ID = I.INDEX_ID AND IC.IS_INCLUDED_COLUMN = 1 ORDER BY IC.INDEX_COLUMN_ID FOR XML PATH('') ) C(INCLUDE_COLUMN_DESC) OUTER APPLY ( SELECT COUNT(*) FROM SYS.TABLES AS T INNER JOIN SYS.INDEXES AS I ON T.OBJECT_ID = I.OBJECT_ID INNER JOIN SYS.PARTITIONS AS P ON I.OBJECT_ID = P.OBJECT_ID AND I.INDEX_ID = P.INDEX_ID INNER JOIN SYS.PARTITION_SCHEMES AS S ON I.DATA_SPACE_ID = S.DATA_SPACE_ID INNER JOIN SYS.PARTITION_FUNCTIONS AS F ON S.FUNCTION_ID = F.FUNCTION_ID LEFT JOIN SYS.PARTITION_RANGE_VALUES AS R ON F.FUNCTION_ID = R.FUNCTION_ID AND R.BOUNDARY_ID = P.PARTITION_NUMBER WHERE T.NAME = T1.NAME AND I.TYPE <= 1 ) D(PARTITIONCNT) OUTER APPLY ( SELECT 8 * SUM(A.USED_PAGES) AS 'INDEXSIZE(KB)' FROM SYS.INDEXES AS III INNER JOIN SYS.PARTITIONS AS P ON P.OBJECT_ID = III.OBJECT_ID AND P.INDEX_ID = I.INDEX_ID INNER JOIN SYS.ALLOCATION_UNITS AS A ON A.CONTAINER_ID = P.PARTITION_ID WHERE III.OBJECT_ID = T1.OBJECT_ID AND III.INDEX_ID = I.INDEX_ID ) E(INDEXSIZEKB) OUTER APPLY ( SELECT TOP 1 * FROM SYS.DM_DB_INDEX_OPERATIONAL_STATS(DB_ID(), T1.OBJECT_ID, I.INDEX_ID, NULL) WHERE 1 = CASE WHEN T1.TYPE_DESC = 'SQL_TABLE_VALUED_FUNCTION' THEN 0 ELSE 1 END ) STAT2 OUTER APPLY ( SELECT TOP 1 * FROM ( SELECT * FROM SYS.DM_DB_INDEX_USAGE_STATS ) A WHERE OBJECT_ID = T1.OBJECT_ID AND INDEX_ID = I.INDEX_ID
AND DATABASE_ID = DB_ID() ) STAT1 OUTER APPLY ( SELECT TOP 1 * FROM SYS.dm_db_index_physical_stats(DB_ID(), T1.OBJECT_ID, I.INDEX_ID, NULL, NULL) ) STAT3 WHERE IS_MS_SHIPPED = 0 AND T1.NAME = CASE WHEN @NAME = '' THEN T1.NAME ELSE @NAME END ORDER BY 1 ,2 ,3 ,4 ,5 ,6 ,7 ,I.INDEX_ID GO EXEC sp_helpindex2 GO
2008 r2
IF OBJECT_ID('SP_HELPINDEX2') IS NULL EXEC ('CREATE PROC SP_HELPINDEX2 AS SELECT 1 ') GO ALTER PROCEDURE SP_HELPINDEX2 @NAME NVARCHAR(4000) = '' AS SET NOCOUNT ON SET TRANSACTION ISOLATION LEVEL READ UNCOMMITTED -- SCRIPT BY MINSOUK KIM -- 01099670955 -- A.TO.Z@NAVERCORP.COM SELECT ISNULL(PS.TYPE_DESC, 'NORMAL') AS ISPTN , PS.NAME AS PTNFUNCNAME , D.PARTITIONCNT AS PTNCNT , T1.TYPE_DESC , FI.NAME AS FGNAME , SCHEMA_NAME(SCHEMA_ID) AS SNAME , T1.CREATE_DATE AS TBLCREDATE , T1.NAME AS OBJNAME , I.TYPE_DESC ISCLUSTERORHEAP , I.NAME AS IXNAME , INDEXSIZEKB AS IXSIZEKB , SUBSTRING(B.INDEX_COLUMN_DESC, 3, 1000) AS IXDESC , SUBSTRING(C.INCLUDE_COLUMN_DESC, 3, 1000) AS INCOLDESC , STATS_DATE(i.object_id, i.index_id) AS [STATISTICUPDATEDATE] , I.IS_UNIQUE , I.IS_UNIQUE_CONSTRAINT , I.IS_PRIMARY_KEY , I.HAS_FILTER , I.FILTER_DEFINITION , I.IS_DISABLED , STAT1.* , STAT2.* --,STAT3.* -- , * FROM SYS.OBJECTS AS T1 INNER JOIN SYS.INDEXES AS I ON T1.[OBJECT_ID] = I.[OBJECT_ID] LEFT JOIN SYS.FILEGROUPS FI ON I.DATA_SPACE_ID = FI.DATA_SPACE_ID -- AND I.[TYPE] IN (0,1) LEFT JOIN SYS.PARTITION_SCHEMES PS ON I.DATA_SPACE_ID = PS.DATA_SPACE_ID OUTER APPLY ( SELECT TOP 100 PERCENT ', ' + AC.NAME + CASE WHEN IS_DESCENDING_KEY = 1 THEN ' DESC' ELSE ' ASC' END AS [text()] FROM SYS.INDEX_COLUMNS IC INNER JOIN SYS.ALL_COLUMNS AC ON IC.OBJECT_ID = AC.OBJECT_ID AND IC.COLUMN_ID = AC.COLUMN_ID WHERE IC.OBJECT_ID = I.OBJECT_ID AND IC.INDEX_ID = I.INDEX_ID AND IC.IS_INCLUDED_COLUMN = 0 ORDER BY IC.INDEX_COLUMN_ID FOR XML PATH('') ) B(INDEX_COLUMN_DESC) OUTER APPLY ( SELECT TOP 100 PERCENT ', ' + AC.NAME AS [text()] FROM SYS.INDEX_COLUMNS IC INNER JOIN SYS.ALL_COLUMNS AC ON IC.OBJECT_ID = AC.OBJECT_ID AND IC.COLUMN_ID = AC.COLUMN_ID WHERE IC.OBJECT_ID = I.OBJECT_ID AND IC.INDEX_ID = I.INDEX_ID AND IC.IS_INCLUDED_COLUMN = 1 ORDER BY IC.INDEX_COLUMN_ID FOR XML PATH('') ) C(INCLUDE_COLUMN_DESC) OUTER APPLY ( SELECT COUNT(*) FROM SYS.TABLES AS T INNER JOIN SYS.INDEXES AS I ON T.OBJECT_ID = I.OBJECT_ID INNER JOIN SYS.PARTITIONS AS P ON I.OBJECT_ID = P.OBJECT_ID AND I.INDEX_ID = P.INDEX_ID INNER JOIN SYS.PARTITION_SCHEMES AS S ON I.DATA_SPACE_ID = S.DATA_SPACE_ID INNER JOIN SYS.PARTITION_FUNCTIONS AS F ON S.FUNCTION_ID = F.FUNCTION_ID LEFT JOIN SYS.PARTITION_RANGE_VALUES AS R ON F.FUNCTION_ID = R.FUNCTION_ID AND R.BOUNDARY_ID = P.PARTITION_NUMBER WHERE T.NAME = T1.NAME AND I.TYPE <= 1 ) D(PARTITIONCNT) OUTER APPLY ( SELECT 8 * SUM(A.USED_PAGES) AS 'INDEXSIZE(KB)' FROM SYS.INDEXES AS III INNER JOIN SYS.PARTITIONS AS P ON P.OBJECT_ID = III.OBJECT_ID AND P.INDEX_ID = I.INDEX_ID INNER JOIN SYS.ALLOCATION_UNITS AS A ON A.CONTAINER_ID = P.PARTITION_ID WHERE III.OBJECT_ID = T1.OBJECT_ID AND III.INDEX_ID = I.INDEX_ID ) E(INDEXSIZEKB) OUTER APPLY ( SELECT TOP 1 * FROM ( SELECT * FROM SYS.DM_DB_INDEX_OPERATIONAL_STATS(DB_ID(), NULL, NULL, NULL) ) a WHERE OBJECT_ID = T1.OBJECT_ID AND INDEX_ID = I.INDEX_ID AND 1 = CASE WHEN T1.TYPE_DESC = 'SQL_TABLE_VALUED_FUNCTION' THEN 0 ELSE 1 END ) STAT2 OUTER APPLY ( SELECT TOP 1 * FROM ( SELECT * FROM SYS.DM_DB_INDEX_USAGE_STATS ) A WHERE OBJECT_ID = T1.OBJECT_ID AND INDEX_ID = I.INDEX_ID AND DATABASE_ID = DB_ID() ) STAT1 OUTER APPLY ( SELECT TOP 1 * FROM ( SELECT * FROM SYS.dm_db_index_physical_stats(DB_ID(), NULL, NULL, NULL, NULL) ) a WHERE OBJECT_ID = T1.OBJECT_ID AND INDEX_ID = I.INDEX_ID AND 1 = CASE WHEN T1.TYPE_DESC = 'SQL_TABLE_VALUED_FUNCTION' THEN 0 ELSE 1 END ) STAT3 WHERE IS_MS_SHIPPED = 0 AND T1.NAME = CASE WHEN @NAME = '' THEN T1.NAME ELSE @NAME END ORDER BY 1 , 2 , 3 , 4 , 5 , 6 , 7 , I.INDEX_ID GO EXEC sp_helpindex2 GO
