將內外的數據批量生成INSERT語句的存儲進程 加強版。本站提示廣大學習愛好者：（將內外的數據批量生成INSERT語句的存儲進程 加強版）文章只能為提供參考，不一定能成為您想要的結果。以下是將內外的數據批量生成INSERT語句的存儲進程 加強版正文
有時刻，我們須要將某個內外的數據全體或許依據查詢前提導出來，遷徙到另外一個雷同構造的庫中
今朝SQL Server外面是沒有相干的對象依據查詢前提來生成INSERT語句的，只要借助第三方對象（third party tools）
這類劇本網上也有許多，然則網上的劇本照樣完善一些標准和功效，例如：我只想導出特定查詢前提的數據，網上的劇本都是導出全表數據
假如表很年夜，對機能會有很年夜影響
這裡有一個存儲進程（實用於SQLServer2005 或以上版本）
-- Author: <桦仔>
-- Blog: <http://www.cnblogs.com/lyhabc/>
-- Create date: <//>
-- Description: <依據查詢前提導出表數據的insert劇本>
-- =============================================
CREATE PROCEDURE InsertGenerator
(
@tableName NVARCHAR(MAX),
@whereClause NVARCHAR(MAX)
)
AS
--Then it includes a cursor to fetch column specific information (column name and the data type thereof)
--from information_schema.columns pseudo entity and loop through for building the INSERT and VALUES clauses
--of an INSERT DML statement.
DECLARE @string NVARCHAR(MAX) --for storing the first half of INSERT statement
DECLARE @stringData NVARCHAR(MAX) --for storing the data (VALUES) related statement
DECLARE @dataType NVARCHAR(MAX) --data types returned for respective columns
DECLARE @schemaName NVARCHAR(MAX) --schema name returned from sys.schemas
DECLARE @schemaNameCount int--shema count
DECLARE @QueryString NVARCHAR(MAX) -- provide for the whole query,
set @QueryString=' '
--假如有多個schema，選擇個中一個schema
SELECT @schemaNameCount=COUNT(*)
FROM sys.tables t
INNER JOIN sys.schemas s ON t.schema_id = s.schema_id
WHERE t.name = @tableName
WHILE(@schemaNameCount>)
BEGIN
--假如有多個schema，順次指定
select @schemaName = name
from
(
SELECT ROW_NUMBER() over(order by s.schema_id) RowID,s.name
FROM sys.tables t
INNER JOIN sys.schemas s ON t.schema_id = s.schema_id
WHERE t.name = @tableName
) as v
where RowID=@schemaNameCount
--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
AND table_schema = @schemaName
OPEN cursCol
SET @string = 'INSERT INTO [' + @schemaName + '].[' + @tableName + ']('
SET @stringData = ''
DECLARE @colName NVARCHAR()
FETCH NEXT FROM cursCol INTO @colName, @dataType
PRINT @schemaName
PRINT @colName
IF @@fetch_status <>
BEGIN
PRINT 'Table ' + @tableName + ' not found, processing skipped.'
CLOSE curscol
DEALLOCATE curscol
RETURN
END
WHILE @@FETCH_STATUS =
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 nvarchar(max)),'''')+'''''',''+'
END
ELSE
IF @dataType = 'money' --because money doesn't get converted
--from varchar implicitly
BEGIN
SET @stringData = @stringData
+ '''convert(money,''''''+
isnull(cast(' + @colName
+ ' as nvarchar(max)),''.'')+''''''),''+'
END
ELSE
IF @dataType = 'datetime'
BEGIN
SET @stringData = @stringData
+ '''convert(datetime,''''''+
isnull(cast(' + @colName + ' as nvarchar(max)),'''')+''''''),''+'
END
ELSE
IF @dataType = 'image'
BEGIN
SET @stringData = @stringData + '''''''''+
isnull(cast(convert(varbinary,' + @colName + ')
as varchar()),'''')+'''''',''+'
END
ELSE --presuming the data type is int,bit,numeric,decimal
BEGIN
SET @stringData = @stringData + '''''''''+
isnull(cast(' + @colName + ' as nvarchar(max)),'''')+'''''',''+'
END
SET @string = @string + '[' + @colName + ']' + ','
FETCH NEXT FROM cursCol INTO @colName, @dataType
END
--After both of the clauses are built, the VALUES clause contains a trailing comma which needs to be replaced with a single quote. The prefixed clause will only face removal of the trailing comma.
DECLARE @Query NVARCHAR(MAX) -- provide for the whole query,
-- you may increase the size
PRINT @whereClause
IF ( @whereClause IS NOT NULL
AND @whereClause <> ''
)
BEGIN
SET @query = 'SELECT ''' + SUBSTRING(@string, , LEN(@string))
+ ') VALUES(''+ ' + SUBSTRING(@stringData, ,
LEN(@stringData) - )
+ '''+'')''
FROM ' +@schemaName+'.'+ @tableName + ' WHERE ' + @whereClause
PRINT @query
-- EXEC sp_executesql @query --load and run the built query
--Eventually, close and de-allocate the cursor created for columns information.
END
ELSE
BEGIN
SET @query = 'SELECT ''' + SUBSTRING(@string, , LEN(@string))
+ ') VALUES(''+ ' + SUBSTRING(@stringData, ,
LEN(@stringData) - )
+ '''+'')''
FROM ' + @schemaName+'.'+ @tableName
END
CLOSE cursCol
DEALLOCATE cursCol
SET @schemaNameCount=@schemaNameCount-
IF(@schemaNameCount=)
BEGIN
SET @QueryString=@QueryString+@query
END
ELSE
BEGIN
SET @QueryString=@QueryString+@query+' UNION ALL '
END
PRINT convert(varchar(max),@schemaNameCount)+'---'+@QueryString
END
EXEC sp_executesql @QueryString --load and run the built query
--Eventually, close and de-allocate the cursor created for columns information.
這裡要聲明一下，假如你有多個schema，而且每一個schema上面都有統一張表，那末劇本只會生成個中一個schema上面的表insert劇本
好比我如今有三個schema，上面都有customer這個表
CREATE TABLE dbo.[customer](city int,region int) CREATE SCHEMA test CREATE TABLE test.[customer](city int,region int) CREATE SCHEMA test1 CREATE TABLE test1.[customer](city int,region int)
在履行劇本的時刻他只會生成dbo這個schema上面的表insert劇本
INSERT INTO [dbo].[customer]([city],[region]) VALUES('1','2')
這個劇本有一個缺點
不管你的表的字段是什麽數據類型，導出來的時刻只能是字符
表構造
CREATE TABLE [dbo].[customer](city int,region int)
導出來的insert劇本
INSERT INTO [dbo].[customer]([city],[region]) VALUES('1','2')
我這裡演示一下怎麽用
有兩種方法
1、導全表數據
InsertGenerator 'customer', null
或
InsertGenerator 'customer', ' '
2、依據查詢前提導數據
InsertGenerator 'customer', 'city=3'
或許
InsertGenerator 'customer', 'city=3 and region=8'
點擊一下，選擇全體
然後復制
新建一個查詢窗口，然後粘貼
其實SQLServer的技能有許多
最初，年夜家可以看一下代碼，異常簡略，假如要支撐SQLServer2000，只需改一下代碼便可以了
彌補：創立一張測試表
CREATE TABLE testinsert (id INT,name VARCHAR(100),cash MONEY,dtime DATETIME) INSERT INTO [dbo].[testinsert] ( [id], [name], [cash], [dtime] ) VALUES ( 1, -- id - int 'nihao', -- name - varchar(100) 8.8, -- cash - money GETDATE() -- dtime - datetime ) SELECT * FROM [dbo].[testinsert]
測試
InsertGenerator 'testinsert' ,'' InsertGenerator 'testinsert' ,'name=''nihao''' InsertGenerator 'testinsert' ,'name=''nihao'' and cash=8.8'
datetime類型會有一些成績
生成的成果會主動幫你轉換
INSERT INTO [dbo].[testinsert]([id],[name],[cash],[dtime]) VALUES('1','nihao',convert(money,'8.80'),convert(datetime,'02 8 2015 5:17PM'))
--------------------------------------------------------------------------------
群裡的人同享的另外一個劇本
IF OBJECT_ID('spGenInsertSQL','P') IS NOT NULL
DROP PROC spGenInsertSQL
GO
CREATE proc spGenInsertSQL (@tablename varchar(256),@number BIGINT,@whereClause NVARCHAR(MAX))
as
begin
declare @sql varchar(8000)
declare @sqlValues varchar(8000)
set @sql =' ('
set @sqlValues = 'values (''+'
select @sqlValues = @sqlValues + cols + ' + '','' + ' ,@sql = @sql + '[' + name + '],'
from
(select case
when xtype in (48,52,56,59,60,62,104,106,108,122,127)
then 'case when '+ name +' is null then ''NULL'' else ' + 'cast('+ name + ' as varchar)'+' end'
when xtype in (58,61,40,41,42)
then 'case when '+ name +' is null then ''NULL'' else '+''''''''' + ' + 'cast('+ name +' as varchar)'+ '+'''''''''+' end'
when xtype in (167)
then 'case when '+ name +' is null then ''NULL'' else '+''''''''' + ' + 'replace('+ name+','''''''','''''''''''')' + '+'''''''''+' end'
when xtype in (231)
then 'case when '+ name +' is null then ''NULL'' else '+'''N'''''' + ' + 'replace('+ name+','''''''','''''''''''')' + '+'''''''''+' end'
when xtype in (175)
then 'case when '+ name +' is null then ''NULL'' else '+''''''''' + ' + 'cast(replace('+ name+','''''''','''''''''''') as Char(' + cast(length as varchar) + '))+'''''''''+' end'
when xtype in (239)
then 'case when '+ name +' is null then ''NULL'' else '+'''N'''''' + ' + 'cast(replace('+ name+','''''''','''''''''''') as Char(' + cast(length as varchar) + '))+'''''''''+' end'
else '''NULL'''
end as Cols,name
from syscolumns
where id = object_id(@tablename)
) T
IF (@number!=0 AND @number IS NOT NULL)
BEGIN
set @sql ='select top '+ CAST(@number AS VARCHAR(6000))+' ''INSERT INTO ['+ @tablename + ']' + left(@sql,len(@sql)-1)+') ' + left(@sqlValues,len(@sqlValues)-4) + ')'' from '+@tablename
print @sql
END
ELSE
BEGIN
set @sql ='select ''INSERT INTO ['+ @tablename + ']' + left(@sql,len(@sql)-1)+') ' + left(@sqlValues,len(@sqlValues)-4) + ')'' from '+@tablename
print @sql
END
PRINT @whereClause
IF ( @whereClause IS NOT NULL AND @whereClause <> '')
BEGIN
set @sql =@sql+' where '+@whereClause
print @sql
END
exec (@sql)
end
GO
挪用示例
--非dbo默許架構需留意 --支撐數據類型 ：bigint，int， bit，char，datetime，date，time，decimal，money， nvarchar(50)，tinyint， nvarchar(max)，varchar(max)，datetime2 --挪用示例 假如top行或許where前提為空，只須要把參數填上null spGenInsertSQL 'customer' --表名 , 2 --top 行數 , 'city=3 and didian=''年夜連'' ' --where 前提 --導出全表 where前提為空 spGenInsertSQL 'customer' --表名 , null --top 行數 ,null --where 前提 INSERT INTO [Department] ([DepartmentID],[Name],[GroupName],[Company],[ModifiedDate]) values (1,N'售後部',N'發賣組',N'中國你好無限公司XX分公司','05 5 2015 5:58PM') INSERT INTO [Department] ([DepartmentID],[Name],[GroupName],[Company],[ModifiedDate]) values (2,N'售後部',N'發賣組',N'中國你好無限公司XX分公司','05 5 2015 5:58PM')
以上所述是本文給年夜家分享的將內外的數據批量生成INSERT語句的存儲進程 加強版，願望年夜家愛好。
