大约有 7,000 项符合查询结果（耗时：0.0268秒） [XML]
FIND_IN_SET() vs IN()
...ould even use an index on companyID.
Unfortunately, this does not work in MySQL since the latter does not support arrays.
You may find this article interesting (see #2):
10 things in MySQL (that won’t work as expected)
Update:
If there is some reasonable limit on the number of values in the...
How to delete a certain row from mysql table with same column values?
I have a problem with my queries in MySQL. My table has 4 columns and it looks something like this:
6 Answers
...
Select last N rows from MySQL
I want to select last 50 rows from MySQL database within column named id which is primary key . Goal is that the rows should be sorted by id in ASC order, that’s why this query isn’t working
...
PDO mysql: How to know if insert was successful
I'm using PDO to insert a record (mysql and php)
7 Answers
7
...
Update date + one year in mysql
When I want setting numerical value +1 in mysql table, I use e.g.:
3 Answers
3
...
MySQL - Rows to Columns
...ts, but I only found solutions for SQL Server/Access. I need a solution in MySQL (5.X).
12 Answers
...
Detect if value is number in MySQL
Is there a way to detect if a value is a number in a MySQL query? Such as
15 Answers
1...
What resources exist for Database performance-tuning? [closed]
...er to a not-the-same-inquiry is probably a good start.
Hidden Features of MySQL
share
|
improve this answer
|
follow
|
...
mysql实现split分割字符串（length, SUBSTRING_INDEX, substring） - 爬虫/...
由于MySql没有直接的split函数，只提供了length, SUBSTRING_INDEX, substring三个函数，这里介绍如何用这三个函数实现split功能。
# SUBSTRING_INDEX(str, delim, count)：返回字符串 str 中在第 count 个出现的分隔符 delim 之前的子串。如果 count 是...
Mysql substr和Oracle substr区别 - 爬虫/数据库 - 清泛IT社区，为创新赋能！
Oracle substr(字符串，开始索引、从0起，长度)
Mysql substr或substring(字符串，开始索引、从1起，长度)