我在使用LIKE的数据库查询中遇到问题 [英] i have a problem in my query in database using LIKE
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问题描述
请帮助我。我想要的是,我想在Table1中将所有prefixNo插入到ContactNo的table2的prefixNo中。因此,PrefixNo中Table2中的所有NULL将在table1中的prefixNo中更改为3个字符。
Pls help me. what i want is, I want to Insert all the prefixNo in Table1 to prefixNo of table2 base on the ContactNo. So all the NULL in Table2 in PrefixNo will be change into 3 character in prefixNo in table1.
UPDATE table2 SET prefixNo = (SELECT prefixNo WHERE Table1 LIKE prefixNo) WHERE contactno LIKE (SELECT prefixNo WHERE Table1 LIKE prefixNo) ORDER BY prefixNo
它不起作用。我尝试不同类型的编码,但它不起作用。 :(。有什么问题?请帮助我。
table1
It's not working. I try different type of coding but it doesn't work. :(. what is problem? pls help me.
table1
id | prefixNo
1 | 910
2 | 922
3 | 920
4 | 929
5 | 930
6 | 932
7 | 933
< br $>
table2
table2
id | prefixNo| ContactNo
1 | NULL | 9309556384
2 | NULL | 9307815328
3 | NULL | 9334489301
4 | NULL | 9330000024
5 | NULL | 9108456218
6 | NULL | 9305789621
7 | NULL | 9335554868
8 | NULL | 9224813354
9 | NULL | 9222224568
10 | NULL | 9105789545
ok。所以这是我要显示的输出
输出:
ok. so this is the output i want to display
OUTPUT:
Table 2
id | prefixNo| ContactNo
1 | 930 | 9309556384
2 | 930 | 9307815328
3 | 933 | 9334489301
4 | 933 | 9330000024
5 | 910 | 9108456218
6 | 930 | 9305789621
7 | 933 | 9335554868
8 | 922 | 9224813354
9 | 922 | 9222224568
10 | 910 | 9105789545
推荐答案
update-row-with-sql-statement-with-like-fails.html [< a href =http://ask.sqlservercentral.com/questions/19796/update-row-with-sql-statement-with-like-fails.html\"target =_ blanktitle =New Window> ^ ]
试试这种方式..希望你能得到它......
update-row-with-sql-statement-with-like-fails.html[^]
Try this way..hope you will get it...
UPDATE TABLE2 SET
prefixNo=B.prefixNo FROM TABLE1 B WHERE contactno LIKE B.prefixNo+'%'
这可以获得您想要什么
THIS CAN GET WHAT YOU WANT
试试这个,
Try this,
UPDATE TABLE2
SET prefixNo= left(ContactNo, 3)
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