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mysql :: insert into table, data from another table?
...use above query if we want to copy data from one table to another table in mysql
Here source and destination table are same, we can use different tables also.
Few columns we are not copying like style_id and is_deleted so we selected them hard coded from another table
Table we used in source also ...
Retrieving the last record in each group - MySQL
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MySQL 8.0 now supports windowing functions, like almost all popular SQL implementations. With this standard syntax, we can write greatest-n-per-group queries:
WITH ranked_messages AS (
SELECT m.*, ROW_NUMBER() OVER (PARTIT...
Drop multiple tables in one shot in mysql
...m in the correct order, nor whether they actually exist.
N.B. this is for MySQL only (as in the question). Other databases likely have different methods for doing this.
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“date(): It is not safe to rely on the system's timezone settings…”
...on the production. There is no error. I have installed the apache, php and MySQL manually on window 10. PHP, MySQL and Apache work. But, this project is giving error.
– Hafiz Shehbaz Ali
Dec 29 '15 at 17:18
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Best way to do multi-row insert in Oracle?
...rform multi-row inserts into an Oracle 9 database. The following works in MySQL but doesn't seem to be supported in Oracle.
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MySQL: @variable vs. variable. What's the difference?
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MySQL has a concept of user-defined variables.
They are loosely typed variables that may be initialized somewhere in a session and keep their value until the session ends.
They are prepended with an @ sign, like this: @var
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What is SQL injection? [duplicate]
...d queries, or applying your language/toolkit's escaping functions (such as mysql_real_escape_string() in PHP).
Once you understand SQL Injection you'll get the joke behind this cartoon.
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How to test if a string is JSON or not?
... with useful data or an error message string produced by the PHP function mysql_error() . How can I test whether this data is a JSON string or the error message.
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.htaccess not working apache
... EC2 service running on Linux ubuntu and I have installed apache, php, and mysql.
12 Answers
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mysql check collation of a table
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Works for me in mysql 5.5.52. ...) ENGINE=InnoDB AUTO_INCREMENT=24 DEFAULT CHARSET=latin1 My guess is it may not show the collation if it is set to the default for the database in later versions of mysql/mariadb.
– Deve...