大约有 7,000 项符合查询结果（耗时：0.0222秒） [XML]
Find and Replace text in the entire table using a MySQL query
Usually I use manual find to replace text in a MySQL database using phpmyadmin. I'm tired of it now, how can I run a query to find and replace a text with new text in the entire table in phpmyadmin?
...
Is SQL syntax case sensitive?
Is SQL case sensitive. I've used MySQL and SQL Server which both seem to be case in-sensitive. Is this always the case? Does the standard define case-sensitivity?
...
How to do a FULL OUTER JOIN in MySQL?
I want to do a Full Outer Join in MySQL. Is this possible? Is a Full Outer Join supported by MySQL?
15 Answers
...
Get table names using SELECT statement in MySQL
In MySQL, I know I can list the tables in a database with:
12 Answers
12
...
What is the benefit of zerofill in MySQL?
...ow what is the benefit/usage of defining ZEROFILL for INT DataType in MySQL ?
9 Answers
...
How do I show a MySQL warning that just happened?
I just ran a simple MySQL CREATE TABLE statement that produced the line
3 Answers
3
...
Invalid default value for 'create_date' timestamp field
...t ignore this option. This is server option. If you have access to my.ini (mysql configuration file), then remove NO_ZERO_DATE from sql-mode option and restart server.
– Devart
Feb 8 '12 at 11:44
...
MySQL “Group By” and “Order By”
... non-aggregate columns in a SELECT with a GROUP BY clause is non-standard. MySQL will generally return the values of the first row it finds and discard the rest. Any ORDER BY clauses will only apply to the returned column value, not to the discarded ones.
IMPORTANT UPDATE
Selecting non-aggregate col...
Set value to NULL in MySQL
...
You're probably quoting 'NULL'. NULL is a reserved word in MySQL, and can be inserted/updated without quotes:
INSERT INTO user (name, something_optional) VALUES ("Joe", NULL);
UPDATE user SET something_optional = NULL;
...
MySQL ON DUPLICATE KEY - last insert id?
...heck this page out: https://web.archive.org/web/20150329004325/https://dev.mysql.com/doc/refman/5.0/en/insert-on-duplicate.html
At the bottom of the page they explain how you can make LAST_INSERT_ID meaningful for updates by passing an expression to that MySQL function.
From the MySQL documentation...