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How to escape apostrophe (') in MySql?
The MySQL documentation says that it should be \' . However, both scite and mysql shows that '' works. I saw that and it works. What should I do?
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App Inventor 2 连接测试App
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MySQL query String contains
I've been trying to figure out how I can make a query with MySQL that checks if the value (string $haystack ) in a certain column contains certain data (string $needle ), like this:
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Is there a simple way to convert C++ enum to string?
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I love this solution. It would be clearer if SOME_UNION and MAKE_UNION were called SOME_ENUM and MAKE_ENUM, though.
– Bruno Martinez
Jan 8 '13 at 14:26
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Get table column names in MySQL?
Is there a way to grab the columns name of a table in mysql?
using php
19 Answers
19
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In php, is 0 treated as empty?
...sset($var) && $var != 0){ Do Something} ??
– mysqllearner
Feb 8 '10 at 9:22
1
@mysql For ...
Installing in Homebrew errors
...ething installed via homebrew that requires special user permissions, like mysql, make sure to give those permissions back (as the above command gives recursive ownership to everything inside /usr/local to you ($USER). In the case of mysql, it's…
sudo chown -RL mysql:mysql /usr/local/mysql/dat...
MySQL Error 1093 - Can't specify target table for update in FROM clause
...handle the OP's exact query, please see other answers to this question
In MySQL, you can't modify the same table which you use in the SELECT part.
This behaviour is documented at:
http://dev.mysql.com/doc/refman/5.6/en/update.html
Maybe you can just join the table to itself
If the logic is simple...
How to use MySQL DECIMAL?
I can't quite get a grasp of MySQL's DECIMAL. I need the row to be able to contain a number anywhere from 00.0001 to 99.9999. How would I structure it to work like so?
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#1071 - Specified key was too long; max key length is 767 bytes
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767 bytes is the stated prefix limitation for InnoDB tables in MySQL version 5.6 (and prior versions). It's 1,000 bytes long for MyISAM tables. In MySQL version 5.7 and upwards this limit has been increased to 3072 bytes.
You also have to be aware that if you set an index on a big char ...