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Nützliche Mysql Snippets

by admin on Oktober 26th, 2010

Dinge die man sich nicht merken kann, sollte man sich aufschreiben!

Bitmask Select MySQL
SELECT * FROM menus WHERE (owner & 2) = 2 (with 2 being the bitmask value and owner the field with your bitmask values)

Varchar-Datum in richtiges DateTime wandeln

SELECT zeit,STR_TO_DATE(zeit, '%d\. %M %Y') FROM guestbook WHERE 1

Auto-increment anpassen / adjust auto-increment value

ALTER TABLE tbl AUTO_INCREMENT = 100;

Spalte innerhalb einer Tabelle verschieben, Rearrange column order in table:

ALTER TABLE my_table MODIFY COLUMN products_id int AFTER categories_id

Table zu utf-8 wandeln, Convert table to utf-8:

ALTER TABLE tbl_name CONVERT TO CHARACTER SET utf8 COLLATE utf8_general_ci;

Tabellen-Kommentare hinzufügen, Inserting database table comments:

ALTER TABLE tablename COMMENT = 'new updated comment';

From → MySQL, Programming

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