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mysql怎么看大写 mysql57区分大小写( 三 )

IT技术字段


(0.05
sec)
mysql
SELECT
*
FROM
case_test
WHERE
word
COLLATE
latin1_bin
LIKE
'f%';
+---------+
|
word
|
+---------+
|
froogle
|
|
flickr
|
+---------+
2
rows
in
set
(0.00
sec)
mysql
SELECT
*
FROM
case_test
WHERE
word
LIKE
'f%'
COLLATE
latin1_bin;
+---------+
|
word
|
+---------+
|
froogle
|
|
flickr
|
+---------+
2
rows
in
set
(0.00
sec)
mysql
SELECT
*
FROM
case_test
WHERE
【mysql怎么看大写 mysql57区分大小写】word
LIKE
'F%'
COLLATE
latin1_bin;
+---------+
|
word
|
+---------+
|
Frank
|
|
FlicKr
|
+---------+
4
rows
in
set
(0.01
sec)
mysql
SELECT
*
FROM
case_test
WHERE
word
LIKE
'F%'
COLLATE
latin1_general_cs;
+---------+
|
word
|
+---------+
|
Frank
|
|
FlicKr
|
+---------+
4
rows
in
set
(0.04
sec)
Mysql怎样在SQL中实现区分大小写的查询1.问题描述
mysql版本：mariadb 10.1.16,采用utf8-ci，不区分大小写的排序规则 。
开发人员反应业务要求要区分大小写，就是说当输入小写条件时，只能返回小写条件对应的数据，不能返回大写 。
dba@192.168.19.215:3306mdls01:58:57SELECT
- cabinet_no
- FROM
- go_task_ycon_refrence gtyr
- WHERE
- 1 = 1
- AND cabinet_no = 'abcd4499503'
- ORDER BY
- 1 ASC;
+-------------+
| cabinet_no |
+-------------+
| ABCD4499503 |
+-------------+
1 row in set (0.00 sec)
2.问题解决
在条件字段后面加COLLATE utf8_bin，或在表级或字段级指定COLLATE utf8_bin
dba@192.168.19.215:3306mdls02:08:08SELECT
- cabinet_no
- FROM
- gtyr
- WHERE
- 1 = 1
- AND cabinet_no COLLATE utf8_bin = 'ABCDU4499503'
- ORDER BY
- 1 ASC;
+-------------+
| cabinet_no |
+-------------+
| ABCD4499503 |
+-------------+
1 row in set (0.00 sec)
dba@192.168.19.215:3306mdls02:08:43SELECT
- cabinet_no
- FROM
- gtyr
- WHERE
- 1 = 1
- AND cabinet_no COLLATE utf8_bin = 'abcd4499503'
- ORDER BY
- 1 ASC;
Empty set (0.00 sec)
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