Generate Update Statement In Sql Server For Specific Table
I'm wondering if there is a tool to generate the UPDATE statement based on data already inserted on a table. I know there is MERGE statement but I would like to know if I can do it
Solution 1:
A fast, easy and efficient solution is to generate your script with an SQL statement.
SELECT ('UPDATE thetable SET
Name='''+ Name +''',
Description ='''+ REPLACE(Description, CHAR(39), CHAR(39)+CHAR(39)) +''',
Active ='+ Active +';
') AS update_statement
FROM TableA
Add your WHERE clause to filter the rows you want in your script
The trick is to properly handle single quotes (aka CHAR(39) ) in your data.
I considered that your Description column might contain single quotes so I have doubled them with a REPLACE(), its contain will thus be properly escaped when you'll throw the resulting SQL instructions. Do the same trick on all fields that might contain single quotes
Solution 2:
There are of course many roads to Rome, but below is a flexible Stored Procedure in MSSQL. It takes as input your normal SELECT statement with WHERE clause, then outputs a list of Insert statements and update statements. Together they form a sort of IF NOT EXISTS () INSERT ELSE UPDATE It is handy too when there are non-updatable columns that need exclusion from the final INSERT/UPDATE statement. (Something that "MSSQL generate scripts" can not do)
Another thing that below script can do is it can even handle INNER JOINs with other tables as input statement for the stored proc. It can be handy as a poor man's Release management tool. Of course payable alternatives are on the market for those that want more.
CREATEPROCEDURE [dbo].[sp_generate_updates] (
@fullquery nvarchar(max) ='',
@ignore_field_input nvarchar(MAX) ='',
@PK_COLUMN_NAME nvarchar(MAX) =''
)
ASSET NOCOUNT ONSET QUOTED_IDENTIFIER ON/*
-- For Standard USAGE: (where clause is mandatory)
EXEC [sp_generate_updates] 'select * from mytable where mytext=''1'' '
OR
SET QUOTED_IDENTIFIER OFF
EXEC [sp_generate_updates] "select * from mytable where mytext='1' "
-- For ignoring specific columns (to ignore in the UPDATE and INSERT SQL statement)
EXEC [sp_generate_updates] 'select * from mytable where 1=1 ' , 'Column01,Column02'
-- For just updates without insert statement (replace the * )
EXEC [sp_generate_updates] 'select Column01, Column02 from mytable where 1=1 '
-- For tables without a primary key: construct the key in the third variable
EXEC [sp_generate_updates] 'select * from mytable where 1=1 ' ,'','your_chosen_primary_key_Col1,key_Col2'
-- For complex updates with JOINED tables
EXEC [sp_generate_updates] 'select o1.Name, o1.category, o2.name+ '_hello_world' as #name
from overnightsetting o1
inner join overnightsetting o2 on o1.name=o2.name
where o1.name like '%appserver%'
(REMARK about above: the use of # in front of a column name (so #abc) can do an update of that columname (abc) with any column from an inner joined table where you use the alias #abc )
-------------README for the deeper interested person:
Goal of the Stored PROCEDURE is to get updates from simple SQL SELECT statements. It is made ot be simple but fast and powerfull. As always => power is nothing without control, so check before you execute.
Its power sits also in the fact that you can make insert statements, so combined gives you a "IF NOT EXISTS() INSERT " capability.
The scripts work were there are primary keys or identity columns on table you want to update (/ or make inserts for).
It will also works when no primary keys / identity column exist(s) and you define them yourselve. But then be carefull (duplicate hits can occur). When the table has a primary key it will always be used.
The script works with a real temporary table, made on the fly (APPROPRIATE RIGHTS needed), to put the values inside from the script, then add 3 columns for constructing the "insert into tableX (...) values ()" , and the 2 update statement.
We work with temporary structures like "where columnname = {Columnname}" and then later do the update on that temptable for the columns values found on that same line.
example "where columnname = {Columnname}" for birthdate becomes "where birthdate = {birthdate}" an then we find the birthdate value on that line inside the temp table.
So then the statement becomes "where birthdate = {19800417}"
Enjoy releasing scripts as of now... by Pieter van Nederkassel - free "CC BY-SA" (+use at own risk)
*/
IF OBJECT_ID('tempdb..#ignore','U') ISNOTNULLDROPTABLE #ignore
DECLARE@stringsplit_table TABLE (col nvarchar(255), dtype nvarchar(255)) -- table to store the primary keys or identity keyDECLARE@PK_condition nvarchar(512), -- placeholder for WHERE pk_field1 = pk_value1 AND pk_field2 = pk_value2 AND ...@pkstring NVARCHAR(512), -- sting to store the primary keys or the idendity key@table_name nvarchar(512), -- (left) table name, including schema@table_N_where_clause nvarchar(max), -- tablename @table_alias nvarchar(512), -- holds the (left) table alias if one available, else @table_name@table_schema NVARCHAR(30), -- schema of @table_name@update_list1 NVARCHAR(MAX), -- placeholder for SET fields section of update@update_list2 NVARCHAR(MAX), -- placeholder for SET fields section of update value comming from other tables in the join, other than the main table to update => updateof base table possible with inner join@list_all_cols BIT =0, -- placeholder for values for the insert into table VALUES command@select_list NVARCHAR(MAX), -- placeholder for SELECT fields of (left) table@COLUMN_NAME NVARCHAR(255), -- will hold column names of the (left) table@sql NVARCHAR(MAX), -- sql statement variable@getdate NVARCHAR(17), -- transform getdate() to YYYYMMDDHHMMSSMMM@tmp_table NVARCHAR(255), -- will hold the name of a physical temp table@pk_separator NVARCHAR(1), -- separator used in @PK_COLUMN_NAME if provided (only checking obvious ones ,;|-)@COLUMN_NAME_DATA_TYPE NVARCHAR(100), -- needed for insert statements to convert to right text string@own_pk BIT =0-- check if table has PK (0) or if provided PK will be used (1)set@ignore_field_input=replace(replace(replace(@ignore_field_input,' ',''),'[',''),']','')
set@PK_COLUMN_NAME= replace(replace(replace(@PK_COLUMN_NAME, ' ',''),'[',''),']','')
-- first we remove all linefeeds from the user queryset@fullquery=replace(replace(replace(@fullquery,char(10),''),char(13),' '),' ',' ')
set@table_N_where_clause=@fullquery
if charindex ('order by' , @table_N_where_clause) >0
print ' WARNING: ORDER BY NOT ALLOWED IN UPDATE ...'
if @PK_COLUMN_NAME <>''select' WARNING: IF you select your own primary keys, make double sure before doing the update statements below!! '--print @table_N_where_clause
if charindex ('select ' , @table_N_where_clause) =0set@table_N_where_clause='select * from '+@table_N_where_clause
if charindex ('select ' , @table_N_where_clause) >0exec (@table_N_where_clause)
set@table_N_where_clause=rtrim(ltrim(substring(@table_N_where_clause,CHARINDEX(' from ', @table_N_where_clause )+6, 4000)))
--print @table_N_where_clause set@table_name=left(@table_N_where_clause,CHARINDEX(' ', @table_N_where_clause )-1)
IF CHARINDEX('where ', @table_N_where_clause) >0SELECT@table_alias = LTRIM(RTRIM(REPLACE(REPLACE(SUBSTRING(@table_N_where_clause,1, CHARINDEX('where ', @table_N_where_clause )-1),'(nolock)',''),@table_name,'')))
IF CHARINDEX('join ', @table_alias) >0SELECT@table_alias =SUBSTRING(@table_alias, 1, CHARINDEX(' ', @table_alias)-1) -- until next space
IF LEN(@table_alias) =0SELECT@table_alias =@table_name
IF (charindex (' *' , @fullquery) >0or charindex (@table_alias+'.*' , @fullquery) >0 ) set@list_all_cols=1/*
print @fullquery
print @table_alias
print @table_N_where_clause
print @table_name
*/-- Prepare PK conditionSELECT@table_schema =CASEWHEN CHARINDEX('.',@table_name) >0THENLEFT(@table_name, CHARINDEX('.',@table_name)-1) ELSE'dbo'ENDSELECT@PK_condition = ISNULL(@PK_condition +' AND ', '') + QUOTENAME('pk_'+COLUMN_NAME) +' = '+ QUOTENAME('pk_'+COLUMN_NAME,'{')
FROM INFORMATION_SCHEMA.KEY_COLUMN_USAGE
WHERE OBJECTPROPERTY(OBJECT_ID(CONSTRAINT_SCHEMA +'.'+ QUOTENAME(CONSTRAINT_NAME)), 'IsPrimaryKey') =1AND TABLE_NAME = REPLACE(@table_name,@table_schema+'.','')
AND TABLE_SCHEMA =@table_schema
SELECT@pkstring= ISNULL(@pkstring+', ', '') +@table_alias +'.'+ QUOTENAME(COLUMN_NAME) +' AS pk_'+ COLUMN_NAME
FROM INFORMATION_SCHEMA.KEY_COLUMN_USAGE i1
WHERE OBJECTPROPERTY(OBJECT_ID(i1.CONSTRAINT_SCHEMA +'.'+ QUOTENAME(i1.CONSTRAINT_NAME)), 'IsPrimaryKey') =1AND i1.TABLE_NAME = REPLACE(@table_name,@table_schema+'.','')
AND i1.TABLE_SCHEMA =@table_schema
-- if no primary keys exist then we try for identity columns
IF @PK_condition isnullSELECT@PK_condition = ISNULL(@PK_condition +' AND ', '') + QUOTENAME('pk_'+COLUMN_NAME) +' = '+ QUOTENAME('pk_'+COLUMN_NAME,'{')
FROM INFORMATION_SCHEMA.COLUMNS
WHERE COLUMNPROPERTY(object_id(TABLE_SCHEMA+'.'+TABLE_NAME), COLUMN_NAME, 'IsIdentity') =1AND TABLE_NAME = REPLACE(@table_name,@table_schema+'.','')
AND TABLE_SCHEMA =@table_schema
IF @pkstringisnullSELECT@pkstring= ISNULL(@pkstring+', ', '') +@table_alias +'.'+ QUOTENAME(COLUMN_NAME) +' AS pk_'+ COLUMN_NAME
FROM INFORMATION_SCHEMA.COLUMNS
WHERE COLUMNPROPERTY(object_id(TABLE_SCHEMA+'.'+TABLE_NAME), COLUMN_NAME, 'IsIdentity') =1AND TABLE_NAME = REPLACE(@table_name,@table_schema+'.','')
AND TABLE_SCHEMA =@table_schema
-- Same but in form of a tableINSERTINTO@stringsplit_table
SELECT'pk_'+i1.COLUMN_NAME as col, i2.DATA_TYPE as dtype
FROM INFORMATION_SCHEMA.KEY_COLUMN_USAGE i1
innerjoin INFORMATION_SCHEMA.COLUMNS i2
on i1.TABLE_NAME = i2.TABLE_NAME AND i1.TABLE_SCHEMA = i2.TABLE_SCHEMA
WHERE OBJECTPROPERTY(OBJECT_ID(i1.CONSTRAINT_SCHEMA +'.'+ QUOTENAME(i1.CONSTRAINT_NAME)), 'IsPrimaryKey') =1AND i1.TABLE_NAME = REPLACE(@table_name,@table_schema+'.','')
AND i1.TABLE_SCHEMA =@table_schema
-- if no primary keys exist then we try for identity columns
IF 0=(selectcount(*) from@stringsplit_table) INSERTINTO@stringsplit_table
SELECT'pk_'+i2.COLUMN_NAME as col, i2.DATA_TYPE as dtype
FROM INFORMATION_SCHEMA.COLUMNS i2
WHERE COLUMNPROPERTY(object_id(i2.TABLE_SCHEMA+'.'+i2.TABLE_NAME), i2.COLUMN_NAME, 'IsIdentity') =1AND i2.TABLE_NAME = REPLACE(@table_name,@table_schema+'.','')
AND i2.TABLE_SCHEMA =@table_schema
-- NOW handling the primary key given as parameter to the main batchSELECT@pk_separator =','-- take this as default, we'll check lower if it's a different one
IF (@PK_condition ISNULLOR@PK_condition ='') AND@PK_COLUMN_NAME <>''BEGIN
IF CHARINDEX(';', @PK_COLUMN_NAME) >0SELECT@pk_separator =';'ELSE IF CHARINDEX('|', @PK_COLUMN_NAME) >0SELECT@pk_separator ='|'ELSE IF CHARINDEX('-', @PK_COLUMN_NAME) >0SELECT@pk_separator ='-'SELECT@PK_condition =NULL-- make sure to make it NULL, in case it was ''INSERTINTO@stringsplit_table
SELECT LTRIM(RTRIM(x.value)) , 'datetime'FROM STRING_SPLIT(@PK_COLUMN_NAME, @pk_separator) x
SELECT@PK_condition = ISNULL(@PK_condition +' AND ', '') + QUOTENAME(x.col) +' = '+ replace(QUOTENAME(x.col,'{'),'{','{pk_')
FROM@stringsplit_table x
SELECT@PK_COLUMN_NAME =NULL-- make sure to make it NULL, in case it was ''SELECT@PK_COLUMN_NAME = ISNULL(@PK_COLUMN_NAME +', ', '') + QUOTENAME(x.col) +' as pk_'+ x.col
FROM@stringsplit_table x
--print 'pkcolumns '+ isnull(@PK_COLUMN_NAME,'')update@stringsplit_table set col='pk_'+ col
SELECT@own_pk =1ENDELSE IF (@PK_condition ISNULLOR@PK_condition ='') AND@PK_COLUMN_NAME =''BEGIN
RAISERROR('No Primary key or Identity column available on table. Add some columns as the third parameter when calling this SP to make your own temporary PK., also remove [] from tablename',17,1)
END-- IF there are no primary keys or an identity key in the table active, then use the given columns as a primary key
if isnull(@pkstring,'') =''set@pkstring=@PK_COLUMN_NAME
IF ISNULL(@pkstring, '') <>''SELECT@fullquery= REPLACE(@fullquery, 'SELECT ','SELECT '+@pkstring+',' )
--print @pkstring-- ignore fields for UPDATE STATEMENT (not ignored for the insert statement, in iserts statement we ignore only identity Columns and the columns provided with the main stored proc )-- Place here all fields that you know can not be converted to nvarchar() values correctly, an thus should not be scripted for updates)-- for insert we will take these fields along, although they will be incorrectly represented!!!!!!!!!!!!!.SELECT ignore_field ='uniqueidXXXX'INTO #ignore
UNIONALLSELECT ignore_field ='UPDATEMASKXXXX'UNIONALLSELECT ignore_field ='UIDXXXXX'UNIONALLSELECTvalueFROM string_split(@ignore_field_input,@pk_separator)
SELECT@getdate= REPLACE(REPLACE(REPLACE(REPLACE(CONVERT(NVARCHAR(30), GETDATE(), 121), '-', ''), ' ', ''), ':', ''), '.', '')
SELECT@tmp_table ='Release_DATA__'+@getdate+'__'+ REPLACE(@table_name,@table_schema+'.','')
SET@sql= replace( @fullquery, ' from ', ' INTO '+@tmp_table +' from ')
----print (@sql)exec (@sql)
SELECT@sql= N'alter table '+@tmp_table + N' add update_stmt1 nvarchar(max), update_stmt2 nvarchar(max) , update_stmt3 nvarchar(max)'EXEC (@sql)
-- Prepare update field list (only columns from the temp table are taken if they also exist in the base table to update)SELECT@update_list1 = ISNULL(@update_list1 +', ', '') +CASEWHEN C1.COLUMN_NAME ='ModifiedBy'THEN'[ModifiedBy] = left(right(replace(CONVERT(VARCHAR(19),[Modified],121),''''-'''',''''''''),19) +''''-''''+right(SUSER_NAME(),30),50)'WHEN C1.COLUMN_NAME ='Modified'THEN'[Modified] = GETDATE()'ELSE QUOTENAME(C1.COLUMN_NAME) +' = '+ QUOTENAME(C1.COLUMN_NAME,'{')
ENDFROM INFORMATION_SCHEMA.COLUMNS c1
innerjoin INFORMATION_SCHEMA.COLUMNS c2
on c1.COLUMN_NAME =c2.COLUMN_NAME and c2.TABLE_NAME = REPLACE(@table_name,@table_schema+'.','') AND c2.TABLE_SCHEMA =@table_schema
WHERE c1.TABLE_NAME =@tmp_table --REPLACE(@table_name,@table_schema+'.','') AND QUOTENAME(c1.COLUMN_NAME) NOTIN (SELECT QUOTENAME(ignore_field) FROM #ignore) -- eliminate binary, image etc value hereAND COLUMNPROPERTY(object_id(c2.TABLE_SCHEMA+'.'+c2.TABLE_NAME), c2.COLUMN_NAME, 'IsIdentity') <>1ANDNOTEXISTS (SELECT1FROM INFORMATION_SCHEMA.KEY_COLUMN_USAGE ku
WHERE1=1AND ku.TABLE_NAME = c2.TABLE_NAME
AND ku.TABLE_SCHEMA = c2.TABLE_SCHEMA
AND ku.COLUMN_NAME = c2.COLUMN_NAME
AND OBJECTPROPERTY(OBJECT_ID(ku.CONSTRAINT_SCHEMA +'.'+ QUOTENAME(ku.CONSTRAINT_NAME)), 'IsPrimaryKey') =1)
ANDNOTEXISTS (SELECT1FROM@stringsplit_table x WHERE x.col = c2.COLUMN_NAME AND@own_pk =1)
-- Prepare update field list (here we only take columns that commence with a #, as this is our queue for doing the update that comes from an inner joined table)SELECT@update_list2 = ISNULL(@update_list2 +', ', '') + QUOTENAME(replace( C1.COLUMN_NAME,'#','')) +' = '+ QUOTENAME(C1.COLUMN_NAME,'{')
FROM INFORMATION_SCHEMA.COLUMNS c1
WHERE c1.TABLE_NAME =@tmp_table --AND c1.TABLE_SCHEMA = @table_schemaAND QUOTENAME(c1.COLUMN_NAME) NOTIN (SELECT QUOTENAME(ignore_field) FROM #ignore) -- eliminate binary, image etc value hereAND c1.COLUMN_NAME like'#%'-- similar for select list, but take all fieldsSELECT@select_list = ISNULL(@select_list +', ', '') + QUOTENAME(COLUMN_NAME)
FROM INFORMATION_SCHEMA.COLUMNS c
WHERE TABLE_NAME = REPLACE(@table_name,@table_schema+'.','')
AND TABLE_SCHEMA =@table_schema
AND COLUMNPROPERTY(object_id(TABLE_SCHEMA+'.'+TABLE_NAME), COLUMN_NAME, 'IsIdentity') <>1-- Identity columns are filled automatically by MSSQL, not needed at Insert statementAND QUOTENAME(c.COLUMN_NAME) NOTIN (SELECT QUOTENAME(ignore_field) FROM #ignore) -- eliminate binary, image etc value hereSELECT@PK_condition = REPLACE(@PK_condition, '[pk_', '[')
set@select_list='if not exists (select * from '+ REPLACE(@table_name,@table_schema+'.','') +' where '+@PK_condition +') INSERT INTO '+ REPLACE(@table_name,@table_schema+'.','') +'('+@select_list +') VALUES ('+ replace(replace(@select_list,'[','{'),']','}') +')'SELECT@sql= N'UPDATE '+@tmp_table +' set update_stmt1 = '''+@select_list +''''
if @list_all_cols=1EXEC (@sql)
--print 'select========== ' + @select_list--print 'update========== ' + @update_list1SELECT@sql= N'UPDATE '+@tmp_table + N'
set update_stmt2 = CONVERT(NVARCHAR(MAX),''UPDATE '+@table_name +
N' SET '+@update_list1 + N''' + '''+
N' WHERE '+@PK_condition + N''') 'EXEC (@sql)
--print @sqlSELECT@sql= N'UPDATE '+@tmp_table + N'
set update_stmt3 = CONVERT(NVARCHAR(MAX),''UPDATE '+@table_name +
N' SET '+@update_list2 + N''' + '''+
N' WHERE '+@PK_condition + N''') 'EXEC (@sql)
--print @sql-- LOOPING OVER ALL base tables column for the INSERT INTO .... VALUESDECLARE c_columns CURSOR FAST_FORWARD READ_ONLY FORSELECT COLUMN_NAME, DATA_TYPE
FROM INFORMATION_SCHEMA.COLUMNS
WHERE TABLE_NAME = (CASEWHEN@list_all_cols=0THEN@tmp_table ELSE REPLACE(@table_name,@table_schema+'.','') END )
AND TABLE_SCHEMA =@table_schema
UNION--pnedSELECT col, 'datetime'FROM@stringsplit_table
OPEN c_columns
FETCH NEXT FROM c_columns INTO@COLUMN_NAME, @COLUMN_NAME_DATA_TYPE
WHILE @@FETCH_STATUS =0BEGINSELECT@sql=CASEWHEN@COLUMN_NAME_DATA_TYPE IN ('char','varchar','nchar','nvarchar')
THEN N'UPDATE '+@tmp_table + N' SET update_stmt1 = REPLACE(update_stmt1, ''{'+@COLUMN_NAME + N'}'', ISNULL('''''''' + REPLACE(RTRIM(CONVERT(NVARCHAR(MAX),['+@COLUMN_NAME + N'])), '''''''','''''''''''') + '''''''', ''NULL'')) 'WHEN@COLUMN_NAME_DATA_TYPE IN ('float','real','money','smallmoney')
THEN N'UPDATE '+@tmp_table + N' SET update_stmt1 = REPLACE(update_stmt1, ''{'+@COLUMN_NAME + N'}'', ISNULL('''''''' + REPLACE(RTRIM(CONVERT(NVARCHAR(MAX),['+@COLUMN_NAME + N'],126)), '''''''','''''''''''') + '''''''', ''NULL'')) 'WHEN@COLUMN_NAME_DATA_TYPE IN ('uniqueidentifier')
THEN N'UPDATE '+@tmp_table + N' SET update_stmt1 = REPLACE(update_stmt1, ''{'+@COLUMN_NAME + N'}'', ISNULL('''''''' + REPLACE(RTRIM(CONVERT(NVARCHAR(MAX),['+@COLUMN_NAME + N'])), '''''''','''''''''''') + '''''''', ''NULL'')) 'WHEN@COLUMN_NAME_DATA_TYPE IN ('text','ntext')
THEN N'UPDATE '+@tmp_table + N' SET update_stmt1 = REPLACE(update_stmt1, ''{'+@COLUMN_NAME + N'}'', ISNULL('''''''' + REPLACE(RTRIM(CONVERT(NVARCHAR(MAX),['+@COLUMN_NAME + N'])), '''''''','''''''''''') + '''''''', ''NULL'')) 'WHEN@COLUMN_NAME_DATA_TYPE IN ('xxxx','yyyy')
THEN N'UPDATE '+@tmp_table + N' SET update_stmt1 = REPLACE(update_stmt1, ''{'+@COLUMN_NAME + N'}'', ISNULL('''''''' + REPLACE(RTRIM(CONVERT(NVARCHAR(MAX),['+@COLUMN_NAME + N'])), '''''''','''''''''''') + '''''''', ''NULL'')) 'WHEN@COLUMN_NAME_DATA_TYPE IN ('binary','varbinary')
THEN N'UPDATE '+@tmp_table + N' SET update_stmt1 = REPLACE(update_stmt1, ''{'+@COLUMN_NAME + N'}'', ISNULL('''''''' + REPLACE(RTRIM(CONVERT(NVARCHAR(MAX),['+@COLUMN_NAME + N'])), '''''''','''''''''''') + '''''''', ''NULL'')) 'WHEN@COLUMN_NAME_DATA_TYPE IN ('XML','xml')
THEN N'UPDATE '+@tmp_table + N' SET update_stmt1 = REPLACE(update_stmt1, ''{'+@COLUMN_NAME + N'}'', ISNULL('''''''' + REPLACE(RTRIM(CONVERT(NVARCHAR(MAX),['+@COLUMN_NAME + N'],0)), '''''''','''''''''''') + '''''''', ''NULL'')) 'WHEN@COLUMN_NAME_DATA_TYPE IN ('datetime','smalldatetime')
THEN N'UPDATE '+@tmp_table + N' SET update_stmt1 = REPLACE(update_stmt1, ''{'+@COLUMN_NAME + N'}'', ISNULL('''''''' + REPLACE(RTRIM(CONVERT(NVARCHAR(MAX),['+@COLUMN_NAME + N'],121)), '''''''','''''''''''') + '''''''', ''NULL'')) 'ELSE
N'UPDATE '+@tmp_table + N' SET update_stmt1 = REPLACE(update_stmt1, ''{'+@COLUMN_NAME + N'}'', ISNULL('''''''' + REPLACE(RTRIM(CONVERT(NVARCHAR(MAX),['+@COLUMN_NAME + N'])), '''''''','''''''''''') + '''''''', ''NULL'')) 'END----PRINT @sqlEXEC (@sql)
FETCH NEXT FROM c_columns INTO@COLUMN_NAME, @COLUMN_NAME_DATA_TYPE
ENDCLOSE c_columns
DEALLOCATE c_columns
--SELECT col FROM @stringsplit_table -- these are the primary keys-- LOOPING OVER ALL temp tables column for the Update valuesDECLARE c_columns CURSOR FAST_FORWARD READ_ONLY FORSELECT COLUMN_NAME,DATA_TYPE
FROM INFORMATION_SCHEMA.COLUMNS
WHERE TABLE_NAME =@tmp_table -- AND TABLE_SCHEMA = @table_schemaUNION--pnedSELECT col, 'datetime'FROM@stringsplit_table
OPEN c_columns
FETCH NEXT FROM c_columns INTO@COLUMN_NAME, @COLUMN_NAME_DATA_TYPE
WHILE @@FETCH_STATUS =0BEGINSELECT@sql=CASEWHEN@COLUMN_NAME_DATA_TYPE IN ('char','varchar','nchar','nvarchar')
THEN N'UPDATE '+@tmp_table + N' SET update_stmt2 = REPLACE(update_stmt2, ''{'+@COLUMN_NAME + N'}'', ISNULL('''''''' + REPLACE(RTRIM(CONVERT(NVARCHAR(MAX),['+@COLUMN_NAME + N'])), '''''''','''''''''''') + '''''''', ''NULL'')), update_stmt3 = REPLACE(update_stmt3, ''{'+@COLUMN_NAME + N'}'', ISNULL('''''''' + REPLACE(RTRIM(CONVERT(NVARCHAR(MAX),['+@COLUMN_NAME + N'])), '''''''','''''''''''') + '''''''', ''NULL'')) 'WHEN@COLUMN_NAME_DATA_TYPE IN ('float','real','money','smallmoney')
THEN N'UPDATE '+@tmp_table + N' SET update_stmt2 = REPLACE(update_stmt2, ''{'+@COLUMN_NAME + N'}'', ISNULL('''''''' + REPLACE(RTRIM(CONVERT(NVARCHAR(MAX),['+@COLUMN_NAME + N'],126)), '''''''','''''''''''') + '''''''', ''NULL'')), update_stmt3 = REPLACE(update_stmt3, ''{'+@COLUMN_NAME + N'}'', ISNULL('''''''' + REPLACE(RTRIM(CONVERT(NVARCHAR(MAX),['+@COLUMN_NAME + N'],126)), '''''''','''''''''''') + '''''''', ''NULL'')) 'WHEN@COLUMN_NAME_DATA_TYPE IN ('uniqueidentifier')
THEN N'UPDATE '+@tmp_table + N' SET update_stmt2 = REPLACE(update_stmt2, ''{'+@COLUMN_NAME + N'}'', ISNULL('''''''' + REPLACE(RTRIM(CONVERT(NVARCHAR(MAX),['+@COLUMN_NAME + N'])), '''''''','''''''''''') + '''''''', ''NULL'')), update_stmt3 = REPLACE(update_stmt3, ''{'+@COLUMN_NAME + N'}'', ISNULL('''''''' + REPLACE(RTRIM(CONVERT(NVARCHAR(MAX),['+@COLUMN_NAME + N'])), '''''''','''''''''''') + '''''''', ''NULL'')) 'WHEN@COLUMN_NAME_DATA_TYPE IN ('text','ntext')
THEN N'UPDATE '+@tmp_table + N' SET update_stmt2 = REPLACE(update_stmt2, ''{'+@COLUMN_NAME + N'}'', ISNULL('''''''' + REPLACE(RTRIM(CONVERT(NVARCHAR(MAX),['+@COLUMN_NAME + N'])), '''''''','''''''''''') + '''''''', ''NULL'')), update_stmt3 = REPLACE(update_stmt3, ''{'+@COLUMN_NAME + N'}'', ISNULL('''''''' + REPLACE(RTRIM(CONVERT(NVARCHAR(MAX),['+@COLUMN_NAME + N'])), '''''''','''''''''''') + '''''''', ''NULL'')) 'WHEN@COLUMN_NAME_DATA_TYPE IN ('xxxx','yyyy')
THEN N'UPDATE '+@tmp_table + N' SET update_stmt2 = REPLACE(update_stmt2, ''{'+@COLUMN_NAME + N'}'', ISNULL('''''''' + REPLACE(RTRIM(CONVERT(NVARCHAR(MAX),['+@COLUMN_NAME + N'])), '''''''','''''''''''') + '''''''', ''NULL'')), update_stmt3 = REPLACE(update_stmt3, ''{'+@COLUMN_NAME + N'}'', ISNULL('''''''' + REPLACE(RTRIM(CONVERT(NVARCHAR(MAX),['+@COLUMN_NAME + N'])), '''''''','''''''''''') + '''''''', ''NULL'')) 'WHEN@COLUMN_NAME_DATA_TYPE IN ('binary','varbinary')
THEN N'UPDATE '+@tmp_table + N' SET update_stmt2 = REPLACE(update_stmt2, ''{'+@COLUMN_NAME + N'}'', ISNULL('''''''' + REPLACE(RTRIM(CONVERT(NVARCHAR(MAX),['+@COLUMN_NAME + N'])), '''''''','''''''''''') + '''''''', ''NULL'')), update_stmt3 = REPLACE(update_stmt3, ''{'+@COLUMN_NAME + N'}'', ISNULL('''''''' + REPLACE(RTRIM(CONVERT(NVARCHAR(MAX),['+@COLUMN_NAME + N'])), '''''''','''''''''''') + '''''''', ''NULL'')) 'WHEN@COLUMN_NAME_DATA_TYPE IN ('XML','xml')
THEN N'UPDATE '+@tmp_table + N' SET update_stmt2 = REPLACE(update_stmt2, ''{'+@COLUMN_NAME + N'}'', ISNULL('''''''' + REPLACE(RTRIM(CONVERT(NVARCHAR(MAX),['+@COLUMN_NAME + N'],0)), '''''''','''''''''''') + '''''''', ''NULL'')), update_stmt3 = REPLACE(update_stmt3, ''{'+@COLUMN_NAME + N'}'', ISNULL('''''''' + REPLACE(RTRIM(CONVERT(NVARCHAR(MAX),['+@COLUMN_NAME + N'],0)), '''''''','''''''''''') + '''''''', ''NULL'')) 'WHEN@COLUMN_NAME_DATA_TYPE IN ('datetime','smalldatetime')
THEN N'UPDATE '+@tmp_table + N' SET update_stmt2 = REPLACE(update_stmt2, ''{'+@COLUMN_NAME + N'}'', ISNULL('''''''' + REPLACE(RTRIM(CONVERT(NVARCHAR(MAX),['+@COLUMN_NAME + N'],121)), '''''''','''''''''''') + '''''''', ''NULL'')), update_stmt3 = REPLACE(update_stmt3, ''{'+@COLUMN_NAME + N'}'', ISNULL('''''''' + REPLACE(RTRIM(CONVERT(NVARCHAR(MAX),['+@COLUMN_NAME + N'],121)), '''''''','''''''''''') + '''''''', ''NULL'')) 'ELSE
N'UPDATE '+@tmp_table + N' SET update_stmt2 = REPLACE(update_stmt2, ''{'+@COLUMN_NAME + N'}'', ISNULL('''''''' + REPLACE(RTRIM(CONVERT(NVARCHAR(MAX),['+@COLUMN_NAME + N'])), '''''''','''''''''''') + '''''''', ''NULL'')), update_stmt3 = REPLACE(update_stmt3, ''{'+@COLUMN_NAME + N'}'', ISNULL('''''''' + REPLACE(RTRIM(CONVERT(NVARCHAR(MAX),['+@COLUMN_NAME + N'])), '''''''','''''''''''') + '''''''', ''NULL'')) 'ENDEXEC (@sql)
----print @sqlFETCH NEXT FROM c_columns INTO@COLUMN_NAME, @COLUMN_NAME_DATA_TYPE
ENDCLOSE c_columns
DEALLOCATE c_columns
SET@sql='Select * from '+@tmp_table +';'--exec (@sql)SELECT@sql= N'
IF OBJECT_ID('''+@tmp_table + N''', ''U'') IS NOT NULL
BEGIN
SELECT ''USE '+ DB_NAME() +''' as executelist
UNION ALL
SELECT ''GO '' as executelist
UNION ALL
SELECT '' /*PRESCRIPT CHECK */ '+ replace(@fullquery,'''','''''')+''' as executelist
UNION ALL
SELECT update_stmt1 as executelist FROM '+@tmp_table + N' where update_stmt1 is not null
UNION ALL
SELECT update_stmt2 as executelist FROM '+@tmp_table + N' where update_stmt2 is not null
UNION ALL
SELECT isnull(update_stmt3, '' add more columns inn query please'') as executelist FROM '+@tmp_table + N' where update_stmt3 is not null
UNION ALL
SELECT ''--EXEC usp_AddInstalledScript 5, 5, 1, 1, 1, '''''+@tmp_table +'.sql'''', 2 '' as executelist
UNION ALL
SELECT '' /*VERIFY WITH: */ '+ replace(@fullquery,'''','''''')+''' as executelist
UNION ALL
SELECT ''-- SCRIPT LOCATION: F:\CopyPaste\++Distributionpoint++\Release_Management\'+@tmp_table +'.sql'' as executelist
END'exec (@sql)
SET@sql='DROP TABLE '+@tmp_table +';'exec (@sql)
Solution 3:
What problem are you trying to solve?
Would INSERTs work?Check out the answer to this question.
Specifically:
Right-click on the database and go to Tasks > Generate Scripts.
Select the tables (or objects) that you want to generate the script against.
Go toSet scripting options tab and click on the Advanced button.
In the General category, go to Type of data to script
There are 3 options: Schema Only, Data Only, and Schema and Data. Select the appropriate optionand click on OK.
You will then get the CREATE TABLE statement and all of the INSERT statements for the data straight out of SSMS.
Solution 4:
you can use xml path to generate query for update
SET NOCOUNT ON;
DECLARE@TableName NVARCHAR(500) ='YOUR_Table_Name'DECLARE@XmlTblTABLE(XVal XML)
INSERTINTO@XmlTblEXEC('SELECT (SELECT * FROM '+@TableName+'
FOR XML PATH(''T''))')
DECLARE@XmlAS XML = (SELECT XVal FROM@XmlTbl)
DECLARE@TTABLE(ID INTIDENTITY(1,1), XmlVal XML)
INSERTINTO@TSELECT
C.query('.')
FROM@Xml.nodes('T') AS T(C)
WHILE EXISTS(SELECT*FROM@T)
BEGINDECLARE@IDINT= (SELECT TOP 1 ID FROM@T)
DECLARE@RowXml XML = (SELECT TOP 1 XmlVal FROM@T)
DECLARE@PK NVARCHAR(500)
=(
SELECT COLUMN_NAME
FROM INFORMATION_SCHEMA.KEY_COLUMN_USAGE
WHERE OBJECTPROPERTY(OBJECT_ID(CONSTRAINT_SCHEMA +'.'+ QUOTENAME(CONSTRAINT_NAME)), 'IsPrimaryKey') =1AND TABLE_NAME =@TableNameAND TABLE_SCHEMA ='dbo'
)
DECLARE@UpdateQuery NVARCHAR(MAX) ='UPDATE '+@TableName+' SET '+
STUFF((
SELECT','+ C.value('local-name(.)', 'nvarchar(100)') +'='+
(CASEWHEN C.value(N'.', 'nvarchar(MAX)') ='NULL'THEN'NULL'ELSE''''+ C.value(N'.', 'nvarchar(MAX)') +''''END)
FROM@RowXml.nodes('T/*') AS T(C)
FOR XML PATH('')
), 1, 1, '')
+'WHERE '+@PK+'='+
(
SELECT''''+ C.value(N'.', 'nvarchar(MAX)') +''''FROM@RowXml.nodes('T/*') AS T(C)
WHERE
C.value('local-name(.)', 'nvarchar(100)') =@PK
)
PRINT @UpdateQueryDELETEFROM@TWHERE ID =@IDEND
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