Một cách khác để kết xuất dữ liệu dưới dạng tệp từ bảng của spump DumpDataFromTable
EXEC dbo.DumpDataFromTable
@SchemaName = 'dbo'
,@TableName = 'YourTableName'
,@PathOut = N'c:\tmp\scripts\' -- folder must exist !!!'
Lưu ý: SQL phải có quyền tạo tệp, nếu không được thiết lập thì hãy thực hiện theo dòng một lần
EXEC sp_configure 'Ole Automation Procedures', 1; RECONFIGURE WITH OVERRIDE;
Theo kịch bản này, bạn có thể gọi sproc: DumpDataFromTable.sql và kết xuất nhiều bảng hơn trong một lần, thay vì thực hiện thủ công từng cái một từ Management Studio
Theo mặc định, định dạng của tập lệnh được tạo sẽ như thế nào
INSERT INTO <TableName> SELECT <Values>
Hoặc bạn có thể thay đổi định dạng được tạo thành
SELECT ... FROM
bằng cách đặt biến @BuildMethod = 2
mã sproc đầy đủ:
IF EXISTS (SELECT * FROM sys.objects WHERE object_id = OBJECT_ID(N'[dbo].[DumpDataFromTable]') AND type in (N'P', N'PC'))
DROP PROCEDURE dbo.[DumpDataFromTable]
GO
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
-- =============================================
-- Author: Oleg Ciobanu
-- Create date: 20171214
-- Version 1.02
-- Description:
-- dump data in 2 formats
-- @BuildMethod = 1 INSERT INTO format
-- @BuildMethod = 2 SELECT * FROM format
--
-- SQL must have permission to create files, if is not set-up then exec follow line once
-- EXEC sp_configure 'Ole Automation Procedures', 1; RECONFIGURE WITH OVERRIDE;
--
-- =============================================
CREATE PROCEDURE [dbo].[DumpDataFromTable]
(
@SchemaName nvarchar(128) --= 'dbo'
,@TableName nvarchar(128) --= 'testTable'
,@WhereClause nvarchar (1000) = '' -- must start with AND
,@BuildMethod int = 1 -- taking values 1 for INSERT INTO forrmat or 2 for SELECT from value Table
,@PathOut nvarchar(250) = N'c:\tmp\scripts\' -- folder must exist !!!'
,@AsFileNAme nvarchar(250) = NULL -- if is passed then will use this value as FileName
,@DebugMode int = 0
)
AS
BEGIN
SET NOCOUNT ON;
-- run follow next line if you get permission deny for sp_OACreate,sp_OAMethod
-- EXEC sp_configure 'Ole Automation Procedures', 1; RECONFIGURE WITH OVERRIDE;
DECLARE @Sql nvarchar (max)
DECLARE @SqlInsert nvarchar (max) = ''
DECLARE @Columns nvarchar(max)
DECLARE @ColumnsCast nvarchar(max)
-- cleanUp/prepraring data
SET @SchemaName = REPLACE(REPLACE(@SchemaName,'[',''),']','')
SET @TableName = REPLACE(REPLACE(@TableName,'[',''),']','')
SET @AsFileNAme = NULLIF(@AsFileNAme,'')
SET @AsFileNAme = REPLACE(@AsFileNAme,'.','_')
SET @AsFileNAme = COALESCE(@PathOut + @AsFileNAme + '.sql', @PathOut + @SchemaName + ISNULL('_' + @TableName,N'') + '.sql')
--debug
IF @DebugMode = 1
PRINT @AsFileNAme
-- Create temp SP what will be responsable for generating script files
DECLARE @PRC_WritereadFile VARCHAR(max) =
'IF EXISTS (SELECT * FROM sys.objects WHERE type = ''P'' AND name = ''PRC_WritereadFile'')
BEGIN
DROP Procedure PRC_WritereadFile
END;'
EXEC (@PRC_WritereadFile)
-- '
SET @PRC_WritereadFile =
'CREATE Procedure PRC_WritereadFile (
@FileMode INT -- Recreate = 0 or Append Mode 1
,@Path NVARCHAR(1000)
,@AsFileNAme NVARCHAR(500)
,@FileBody NVARCHAR(MAX)
)
AS
DECLARE @OLEResult INT
DECLARE @FS INT
DECLARE @FileID INT
DECLARE @hr INT
DECLARE @FullFileName NVARCHAR(1500) = @Path + @AsFileNAme
-- Create Object
EXECUTE @OLEResult = sp_OACreate ''Scripting.FileSystemObject'', @FS OUTPUT
IF @OLEResult <> 0 BEGIN
PRINT ''Scripting.FileSystemObject''
GOTO Error_Handler
END
IF @FileMode = 0 BEGIN -- Create
EXECUTE @OLEResult = sp_OAMethod @FS,''CreateTextFile'',@FileID OUTPUT, @FullFileName
IF @OLEResult <> 0 BEGIN
PRINT ''CreateTextFile''
GOTO Error_Handler
END
END ELSE BEGIN -- Append
EXECUTE @OLEResult = sp_OAMethod @FS,''OpenTextFile'',@FileID OUTPUT, @FullFileName, 8, 0 -- 8- forappending
IF @OLEResult <> 0 BEGIN
PRINT ''OpenTextFile''
GOTO Error_Handler
END
END
EXECUTE @OLEResult = sp_OAMethod @FileID, ''WriteLine'', NULL, @FileBody
IF @OLEResult <> 0 BEGIN
PRINT ''WriteLine''
GOTO Error_Handler
END
EXECUTE @OLEResult = sp_OAMethod @FileID,''Close''
IF @OLEResult <> 0 BEGIN
PRINT ''Close''
GOTO Error_Handler
END
EXECUTE sp_OADestroy @FS
EXECUTE sp_OADestroy @FileID
GOTO Done
Error_Handler:
DECLARE @source varchar(30), @desc varchar (200)
EXEC @hr = sp_OAGetErrorInfo null, @source OUT, @desc OUT
PRINT ''*** ERROR ***''
SELECT OLEResult = @OLEResult, hr = CONVERT (binary(4), @hr), source = @source, description = @desc
Done:
';
-- '
EXEC (@PRC_WritereadFile)
EXEC PRC_WritereadFile 0 /*Create*/, '', @AsFileNAme, ''
;WITH steColumns AS (
SELECT
1 as rn,
c.ORDINAL_POSITION
,c.COLUMN_NAME as ColumnName
,c.DATA_TYPE as ColumnType
FROM INFORMATION_SCHEMA.COLUMNS c
WHERE 1 = 1
AND c.TABLE_SCHEMA = @SchemaName
AND c.TABLE_NAME = @TableName
)
--SELECT *
SELECT
@ColumnsCast = ( SELECT
CASE WHEN ColumnType IN ('date','time','datetime2','datetimeoffset','smalldatetime','datetime','timestamp')
THEN
'convert(nvarchar(1001), s.[' + ColumnName + ']' + ' , 121) AS [' + ColumnName + '],'
--,convert(nvarchar, [DateTimeScriptApplied], 121) as [DateTimeScriptApplied]
ELSE
'CAST(s.[' + ColumnName + ']' + ' AS NVARCHAR(1001)) AS [' + ColumnName + '],'
END
as 'data()'
FROM
steColumns t2
WHERE 1 =1
AND t1.rn = t2.rn
FOR xml PATH('')
)
,@Columns = ( SELECT
'[' + ColumnName + '],' as 'data()'
FROM
steColumns t2
WHERE 1 =1
AND t1.rn = t2.rn
FOR xml PATH('')
)
FROM steColumns t1
-- remove last char
IF lEN(@Columns) > 0 BEGIN
SET @Columns = SUBSTRING(@Columns, 1, LEN(@Columns)-1);
SET @ColumnsCast = SUBSTRING(@ColumnsCast, 1, LEN(@ColumnsCast)-1);
END
-- debug
IF @DebugMode = 1 BEGIN
print @ColumnsCast
print @Columns
select @ColumnsCast , @Columns
END
-- build unpivoted Data
SET @SQL = '
SELECT
u.rn
, c.ORDINAL_POSITION as ColumnPosition
, c.DATA_TYPE as ColumnType
, u.ColumnName
, u.ColumnValue
FROM
(SELECT
ROW_NUMBER() OVER (ORDER BY (SELECT NULL)) AS rn,
'
+ CHAR(13) + @ColumnsCast
+ CHAR(13) + 'FROM [' + @SchemaName + '].[' + @TableName + '] s'
+ CHAR(13) + 'WHERE 1 = 1'
+ CHAR(13) + COALESCE(@WhereClause,'')
+ CHAR(13) + ') tt
UNPIVOT
(
ColumnValue
FOR ColumnName in (
' + CHAR(13) + @Columns
+ CHAR(13)
+ '
)
) u
LEFT JOIN INFORMATION_SCHEMA.COLUMNS c ON c.COLUMN_NAME = u.ColumnName
AND c.TABLE_SCHEMA = '''+ @SchemaName + '''
AND c.TABLE_NAME = ''' + @TableName +'''
ORDER BY u.rn
, c.ORDINAL_POSITION
'
-- debug
IF @DebugMode = 1 BEGIN
print @Sql
exec (@Sql)
END
-- prepare data for cursor
IF OBJECT_ID('tempdb..#tmp') IS NOT NULL
DROP TABLE #tmp
CREATE TABLE #tmp
(
rn bigint
,ColumnPosition int
,ColumnType varchar (128)
,ColumnName varchar (128)
,ColumnValue nvarchar (2000) -- I hope this size will be enough for storring values
)
SET @Sql = 'INSERT INTO #tmp ' + CHAR(13) + @Sql
-- debug
IF @DebugMode = 1 BEGIN
print @Sql
END
EXEC (@Sql)
-- Insert dummy rec, otherwise will not proceed the last rec :)
INSERT INTO #tmp (rn)
SELECT MAX(rn) + 1
FROM #tmp
IF @DebugMode = 1 BEGIN
SELECT * FROM #tmp
END
DECLARE @rn bigint
,@ColumnPosition int
,@ColumnType varchar (128)
,@ColumnName varchar (128)
,@ColumnValue nvarchar (2000)
,@i int = -1 -- counter/flag
,@ColumnsInsert varchar(max) = NULL
,@ValuesInsert nvarchar(max) = NULL
DECLARE cur CURSOR FOR
SELECT rn, ColumnPosition, ColumnType, ColumnName, ColumnValue
FROM #tmp
ORDER BY rn, ColumnPosition -- note order is really important !!!
OPEN cur
FETCH NEXT FROM cur
INTO @rn, @ColumnPosition, @ColumnType, @ColumnName, @ColumnValue
IF @BuildMethod = 1
BEGIN
SET @SqlInsert = 'SET NOCOUNT ON;' + CHAR(13);
EXEC PRC_WritereadFile 1 /*Add*/, '', @AsFileName, @SqlInsert
SET @SqlInsert = ''
END
ELSE BEGIN
SET @SqlInsert = 'SET NOCOUNT ON;' + CHAR(13);
SET @SqlInsert = @SqlInsert
+ 'SELECT *'
+ CHAR(13) + 'FROM ('
+ CHAR(13) + 'VALUES'
EXEC PRC_WritereadFile 1 /*Add*/, '', @AsFileName, @SqlInsert
SET @SqlInsert = NULL
END
SET @i = @rn
WHILE @@FETCH_STATUS = 0
BEGIN
IF (@i <> @rn) -- is a new row
BEGIN
IF @BuildMethod = 1
-- build as INSERT INTO -- as Default
BEGIN
SET @SqlInsert = 'INSERT INTO [' + @SchemaName + '].[' + @TableName + '] ('
+ CHAR(13) + @ColumnsInsert + ')'
+ CHAR(13) + 'VALUES ('
+ @ValuesInsert
+ CHAR(13) + ');'
END
ELSE
BEGIN
-- build as Table select
IF (@i <> @rn) -- is a new row
BEGIN
SET @SqlInsert = COALESCE(@SqlInsert + ',','') + '(' + @ValuesInsert+ ')'
EXEC PRC_WritereadFile 1 /*Add*/, '', @AsFileNAme, @SqlInsert
SET @SqlInsert = '' -- in method 2 we should clear script
END
END
-- debug
IF @DebugMode = 1
print @SqlInsert
EXEC PRC_WritereadFile 1 /*Add*/, '', @AsFileNAme, @SqlInsert
-- we have new row
-- initialise variables
SET @i = @rn
SET @ColumnsInsert = NULL
SET @ValuesInsert = NULL
END
-- build insert values
IF (@i = @rn) -- is same row
BEGIN
SET @ColumnsInsert = COALESCE(@ColumnsInsert + ',','') + '[' + @ColumnName + ']'
SET @ValuesInsert = CASE
-- date
--WHEN
-- @ColumnType IN ('date','time','datetime2','datetimeoffset','smalldatetime','datetime','timestamp')
--THEN
-- COALESCE(@ValuesInsert + ',','') + '''''' + ISNULL(RTRIM(@ColumnValue),'NULL') + ''''''
-- numeric
WHEN
@ColumnType IN ('bit','tinyint','smallint','int','bigint'
,'money','real','','float','decimal','numeric','smallmoney')
THEN
COALESCE(@ValuesInsert + ',','') + '' + ISNULL(RTRIM(@ColumnValue),'NULL') + ''
-- other types treat as string
ELSE
COALESCE(@ValuesInsert + ',','') + '''' + ISNULL(RTRIM(
-- escape single quote
REPLACE(@ColumnValue, '''', '''''')
),'NULL') + ''''
END
END
FETCH NEXT FROM cur
INTO @rn, @ColumnPosition, @ColumnType, @ColumnName, @ColumnValue
-- debug
IF @DebugMode = 1
BEGIN
print CAST(@rn AS VARCHAR) + '-' + CAST(@ColumnPosition AS VARCHAR)
END
END
CLOSE cur
DEALLOCATE cur
IF @BuildMethod = 1
BEGIN
PRINT 'ignore'
END
ELSE BEGIN
SET @SqlInsert = CHAR(13) + ') AS vtable '
+ CHAR(13) + ' (' + @Columns
+ CHAR(13) + ')'
EXEC PRC_WritereadFile 1 /*Add*/, '', @AsFileNAme, @SqlInsert
SET @SqlInsert = NULL
END
PRINT 'Done: ' + @AsFileNAme
END
Hoặc có thể tải xuống phiên bản mới nhất từ https://github.com/Zindur/MSSQL-DumpTable/tree/master/Scripts
