zoukankan      html  css  js  c++  java
  • 存储过程根据表名生成表的insert语句 Alec

    有时候,我们得到一张表,需要把这张表里的数据生成insert into语句,一种方法是在“任务》生成脚本》下一步》高级”中,把数据连同表结构一并生成脚本,如图:

    另外,还可以通过编写村粗过程来实现,这种方法更为方便:

    CREATE PROCEDURE [dbo].[UspOutputData] 
    @tablename sysname 
    AS 
    declare @column varchar(1000) 
    declare @columndata varchar(1000) 
    declare @sql varchar(4000) 
    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 '+@tablename+'('+@column+') values(''as ''--'','+@columndata+','')'' from '+@tablename 
    
    print '--'+@sql 
    exec(@sql) 
    
    if @ident is not null 
    print 'SET IDENTITY_INSERT '+@TableName+' OFF' 
    
    
    GO

    生成存储过程后,只需要执行exec UspOutputData '表名'即可为该表生成相应的insert命令。

    更多前端内容请访问个人博客:殷路辉的个人博客
  • 相关阅读:
    并查集
    博弈——Bash、Nim、Wythoff
    博弈——SG函数模板
    数据结构——二叉树
    数据结构——链式队列
    sonar-maven-plugin问题
    确立核心模型
    调度思路+EurekaServer获得当前机器的instanceid
    简易的RestClient代码
    Spring Cloud App(Service) Pom示例
  • 原文地址:https://www.cnblogs.com/yinluhui0229/p/2708674.html
Copyright © 2011-2022 走看看