快速将一个表的数据生成SQL插入语句

时间:2023-03-09 02:14:08
快速将一个表的数据生成SQL插入语句

将一个表中的数据生成SQL插入语句,方便系统快速初始化,在数据库中执行创建以下过程就可以了。

if    exists (select * from sysobjects where id=object_id('GenerateData') and  OBJECTPROPERTY(id, 'IsProcedure') =1 )
Drop Procedure GenerateData
go
CREATE PROCEDURE GenerateData
@tablename sysname
AS
begin
declare @column varchar(2000)
declare @columndata varchar(2000)
declare @sql varchar(8000)
declare @xtype tinyint
declare @name sysname
declare @objectId int
declare @objectname sysname
declare @ident int set nocount on
set @objectId=object_id(@tablename) if @objectId is null -- 判断对象是否存在
begin
print 'The object not exists'
return
end
set @objectname=rtrim(object_name(@objectId)) if @objectname is null or charindex(@objectname,@tablename)=0 --此判断不严密
begin
print 'object not in current database'
return
end if OBJECTPROPERTY(@objectId,'IsTable') < > 1 -- 判断对象是否是table
begin
print 'The object is not table'
return
end select @ident=status&0x80 from syscolumns where id=@objectid and status&0x80=0x80 if @ident is not null
print 'SET IDENTITY_INSERT '+@TableName+' ON' declare syscolumns_cursor cursor
for select c.name,c.xtype from syscolumns c
where c.id=@objectid order by c.colid open syscolumns_cursor
set @column=''
set @columndata=''
fetch next from syscolumns_cursor into @name,@xtype while @@fetch_status < >-1
begin
if @@fetch_status < >-2
begin
if @xtype not in(189,34,35,99,98) --timestamp不需处理,image,text,ntext,sql_variant 暂时不处理 begin
set @column=@column+case when len(@column)=0 then'' else ','end+@name set @columndata=@columndata+case when len(@columndata)=0 then '' else ','','','end
+case when @xtype in(167,175) then '''''''''+'+@name+'+''''''''' --varchar,char
when @xtype in(231,239) then '''N''''''+'+@name+'+''''''''' --nvarchar,nchar
when @xtype=61 then '''''''''+convert(char(23),'+@name+',121)+''''''''' --datetime
when @xtype=58 then '''''''''+convert(char(16),'+@name+',120)+''''''''' --smalldatetime
when @xtype=36 then '''''''''+convert(char(36),'+@name+')+''''''''' --uniqueidentifier
else @name end end end fetch next from syscolumns_cursor into @name,@xtype end close syscolumns_cursor
deallocate syscolumns_cursor set @sql='set nocount on select ''insert into '+@tablename+'('+@column+') values(''as ''--'','+@columndata+','')'' from '+@tablename print '--'+@sql
exec(@sql) if @ident is not null
print 'SET IDENTITY_INSERT '+@TableName+' OFF'
end
GO

实例,要将表t_sys_menu中的生成插入语句,就如下执行操作即可:

exec GenerateData 't_sys_menu'