A procedure abaixo cria query INSERT a partir dos registros de uma tabela no SQL Server.
[sql]
CREATE PROC [dbo].[InsertGenerator]
(@tableName varchar(100)) as
–Declare a cursor to retrieve column specific information
–for the specified table
DECLARE cursCol CURSOR FAST_FORWARD FOR
SELECT column_name,data_type FROM information_schema.columns
WHERE table_name = @tableName
OPEN cursCol
DECLARE @string nvarchar(3000) –for storing the first half
–of INSERT statement
DECLARE @stringData nvarchar(3000) –for storing the data
–(VALUES) related statement
DECLARE @dataType nvarchar(1000) –data types returned
–for respective columns
SET @string=’INSERT ‘+@tableName+'(‘
SET @stringData=”
DECLARE @colName nvarchar(50)
FETCH NEXT FROM cursCol INTO @colName,@dataType
IF @@fetch_status<>0
begin
print ‘Table ‘+@tableName+’ not found, processing skipped.’
close curscol
deallocate curscol
return
END
WHILE @@FETCH_STATUS=0
BEGIN
IF @dataType in (‘varchar’,’char’,’nchar’,’nvarchar’)
BEGIN
SET @stringData=@stringData+””””’+
isnull(‘+@colName+’,””)+”””,”+’
END
ELSE
if @dataType in (‘text’,’ntext’) –if the datatype
–is text or something else
BEGIN
SET @stringData=@stringData+””””’+
isnull(cast(‘+@colName+’ as varchar(2000)),””)+”””,”+’
END
ELSE
IF @dataType = ‘money’ –because money doesn’t get converted
–from varchar implicitly
BEGIN
SET @stringData=@stringData+”’convert(money,”””+
isnull(cast(‘+@colName+’ as varchar(200)),”0.0000”)+”””),”+’
END
ELSE
IF @dataType=’datetime’
BEGIN
SET @stringData=@stringData+”’convert(datetime,”””+
isnull(cast(‘+@colName+’ as varchar(200)),”0”)+”””),”+’
END
ELSE
IF @dataType=’image’
BEGIN
SET @stringData=@stringData+””””’+
isnull(cast(convert(varbinary,’+@colName+’)
as varchar(6)),”0”)+”””,”+’
END
ELSE–presuming the data type is int,bit,numeric,decimal
BEGIN
SET @stringData=@stringData+””””’+
isnull(cast(‘+@colName+’ as varchar(200)),”0”)+”””,”+’
END
SET @string=@string+@colName+’,’
FETCH NEXT FROM cursCol INTO @colName,@dataType
END
DECLARE @Query nvarchar(4000) — provide for the whole query,
— you may increase the size
SET @query =’SELECT ”’+substring(@string,0,len(@string)) + ‘)
VALUES(”+ ‘ + substring(@stringData,0,len(@stringData)-2)+”’+”)”
FROM ‘+@tableName
exec sp_executesql @query –load and run the built query
CLOSE cursCol
DEALLOCATE cursCol
GO
[/sql]
