Notepad:UTF8: Difference between revisions
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FROM INFORMATION_SCHEMA.COLUMNS | FROM INFORMATION_SCHEMA.COLUMNS | ||
WHERE TABLE_SCHEMA='%%' AND COLLATION_NAME='latin1_swedish_ci'; | WHERE TABLE_SCHEMA='%%' AND COLLATION_NAME='latin1_swedish_ci'; | ||
Then before executing: | |||
{code}SET FOREIGN_KEY_CHECKS=0;{/code} |
Latest revision as of 21:36, 19 November 2018
Create a database with UTF-8
Configuring the Character Set and Collation for Applications
CREATE DATABASE <DB> DEFAULT CHARACTER SET utf8mb4 DEFAULT COLLATE utf8mb4_unicode_ci;
use <DB>;
Move a table to UTF-8
SELECT DISTINCT CONCAT('ALTER TABLE ',TABLE_NAME,' CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;') FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_SCHEMA='%%' AND COLLATION_NAME='latin1_swedish_ci';
Move individual fields to UTF-8
SELECT DISTINCT CONCAT('ALTER TABLE ',TABLE_NAME,' MODIFY ',COLUMN_NAME,' ',COLUMN_TYPE, ' CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;') FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_SCHEMA='%%' AND COLLATION_NAME='latin1_swedish_ci';
Then before executing:
{code}SET FOREIGN_KEY_CHECKS=0;{/code}