数据库update语句有关问题

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Release: 2016-06-13 13:17:38
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数据库update语句问题
update 表名 set 列名=一段字符串+表id+字符串怎么写

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update 表名 set 列名='一段字符串'+表id+'字符串';
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hehe, #1 楼好幽默 :)

应该用 CONCAT() 吧?……
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探讨

hehe, #1 楼好幽默 :)

应该用 CONCAT() 吧?……

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update 表名 set 列名1='字符串1',列名2='字符串2',列名3='字符串3'....
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update是更改数据操作
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后面加上 where ID=‘1’
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用 . 连接
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他的意思应该是在一个已知ID=‘1’的数据中更新数据
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我也不知道
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update tablename set name='.$name.' where id=1;
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探讨

update winiis_c_fileaq set pageup='../aq/1207/index_'+cast(c_id-1 as varchar(20))+'.html'
我自己写出来了
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