大约有 7,000 项符合查询结果（耗时：0.0314秒） [XML]
Storing SHA1 hash values in MySQL
...estion which occured when I wanted to store the result of a SHA1 hash in a MySQL database:
7 Answers
...
Bogus foreign key constraint fail
...Two possibilities:
There is a table within another schema ("database" in mysql terminology) which has a FK reference
The innodb internal data dictionary is out of sync with the mysql one.
You can see which table it was (one of them, anyway) by doing a "SHOW ENGINE INNODB STATUS" after the drop f...
What are the differences between the BLOB and TEXT datatypes in MySQL?
...rted and compared based on the collation of the character set.
http://dev.mysql.com/doc/refman/5.0/en/blob.html
share
|
improve this answer
|
follow
|
...
SQL query return data from multiple tables
...mply a color listing so that we know what colors we have in the car yard.
mysql> create table colors(id int(3) not null auto_increment primary key,
-> color varchar(15), paint varchar(10));
Query OK, 0 rows affected (0.01 sec)
mysql> show columns from colors;
+-------+-------------+-...
MySQL - Using COUNT(*) in the WHERE clause
I am trying to accomplish the following in MySQL (see pseudo code)
9 Answers
9
...
With MySQL, how can I generate a column containing the record index in a table?
...
@smhnaji MySQL requires that every "derived table" is given a name. I decided to call it "r" :) ... It has little purpose in this case, but you'd normally use it to reference attributes of the derived table, as if it was a real table....
Update one MySQL table with values from another
I'm trying to update one MySQL table based on information from another.
2 Answers
2
...
MySQL get row position in ORDER BY
With the following MySQL table:
9 Answers
9
...
Delete all records in a table of MYSQL in phpMyAdmin
... detailed blog with example: http://sforsuresh.in/phpmyadmin-deleting-rows-mysql-table/
share
|
improve this answer
|
follow
|
...
Find rows that have the same value on a column in MySQL
... created what was essentially infinite recursion or something on mysql resulting in a dead database due to "too many connections" :-/
– huygir
Mar 5 '18 at 17:40
add...