mysql+delete+sql语句
MySQL两表相同字段合并、更新,JAVA实现
num int); insert into tt(word,num) select word,num from 表A union select word,num from 表B;delete from 表A;insert into 表A(word,num) select word, sum(num) as num from tt group by word;drop table tt;end
删除数据时,想要个确认对话框,可是数据传送不过去了??
建议你最好写个JS函数:) function confirmDelete(){ if(window.confirm('你确认删除吗?')){ window.location.href='dele.php?id=' + <?="$idx"?>;\/\/window.location.href='dele.php?id=1';return true;} else { return false;} } 删除 ...
删除C#中的DataSet的一条数据 和修改一条数据,怎么写?请给个例子,谢谢...
string mysql = null; if (this.DropDownList1.SelectedItem.Text == "商品名称") { mysql = "select * from products where CPmingcheng like '%" + this.TextBox1.Text + "%'"; } if (this.DropDownList1.SelectedItem.Text == "商品型号") { mysql = "select * from products where shangpinxing...
ubuntu服务器安装proftpd ftp服务器步骤
# UseSendFile off # Choose a SQL backend among MySQL or PostgreSQL. # Both modules are loaded in default configuration, so you have to specify the backend # or comment out the unused module in \/etc\/proftpd\/modules.conf. # Use 'mysql' or 'postgres' as po...
哪个网站有免费的AutoCAD的实例教程可以看?
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冠县文迪回答: 多个*吧,,, 是 delete from t_hcity where CityName='$CityName'
涂庆15326932528问: mySQL删除相同数据的SQL语句怎么写 - ?
冠县文迪回答: drop database 数据库名 --删除数据库的 drop table 表名--删除表的 delete from 表名 where 条件 --删除数据的 truncate table 表名 也是删除数据库的.但是他可以裁断序列 这个你跟DELETE 对照试一下就知道了
涂庆15326932528问: 我想删除MYSQL数据库里面的十条数据,SQL语句怎么写.求大神帮忙,我急用. - ?
冠县文迪回答: DELETE FROM dede_addonarticle WHERE aid > 5 and aidDELETE FROM dede_arctiny WHERE id > 5 and idDELETE FROM dede_archives WHERE id > 5 and id
涂庆15326932528问: mysql中如何用一条sql语句删除多条记录?急!!!! - ?
冠县文迪回答: delete from 表名 where id in (1,3,5)
涂庆15326932528问: mysql基本语句 - ?
冠县文迪回答: 查看:SELECT * FROM [表名] 删除:DELETE FROM [表名] WHERE ID=? 添加:INSERT INTO [表名] ([字段1],[字段2],[字段3])VALUES(值1,值2,值3) 修改:UPDATE [表名] WHERE ID=? 自己多看吧,别人给你的只是基本的,如果在应用还在花点时间在上面的,不过但愿能帮到你,呵呵...
涂庆15326932528问: mysql数据库sql语句删除语句的使用 - ?
冠县文迪回答: delete a from table a,table b where a.p1 = p.p2 and a.p1>b.p2
涂庆15326932528问: 求一个mysql数据库删除重复数据的SQL语句 - ?
冠县文迪回答: delete from article_chapter where aid not in(select max(aid) from article_chapter group by articleid , chaptername)
涂庆15326932528问: 求mysql数据库删除语句! - ?
冠县文迪回答: 例子: DROP DATABASE `phpwind`;DROP是标准的SQL命令,各大数据库系统都应该支持,在MYSQL上完全支持.
涂庆15326932528问: mysql 删除数据的语句 - ?
冠县文迪回答: 先做查询,然后用in来进行where约束就ok了…… delete shop where id not in(select shop_id from book)