大约有 7,000 项符合查询结果(耗时:0.0179秒) [XML]
致PHP路上的“年轻人” - 杂谈 - 清泛网 - 专注C/C++及内核技术
...落的“过来人”,还是想写点东西给“年轻人”。
关于如何成长?
我直白的答案还是建议通过实践,通过项目来成长。虽然提倡多参加项目,但项目不能是乱七八糟的项目什么都去尝试做,对于刚工作的同学,希望做这两类...
Foreign key constraints: When to use ON UPDATE and ON DELETE
I'm designing my database schema using MySQL Workbench, which is pretty cool because you can do diagrams and it converts them :P
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SQL standard to escape column names?
Is there a SQL standard to escape a column name? If not what works for MySQL and SQLite? does it also work for SQL Server?
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MongoDB vs. Cassandra [closed]
...sandra: they are not using Cassandra for persisting tweets, they use still MySQL here (engineering.twitter.com/2010/07/cassandra-at-twitter-today.html). Ok, but I can imagine that they still store lots of data for other purposes in Cassandra.
– H6.
Jan 13 '12 a...
Inserting multiple rows in mysql
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Use mysql multiqueries
– Francisco Yepes Barrera
Nov 9 '15 at 16:10
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Deleting rows with MySQL LEFT JOIN
...R `status` = 'storno');
I am not sure if that kind of sub query works in MySQL, but try it. I am assuming you have an ID column in your deadline table.
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What is maximum query size for mysql?
What is maximum query size for mysql? Some times the server stops working when I fire a too long query.
2 Answers
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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...
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
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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
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