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  • Change the collation of database, tables and columns

    @subhash.purohit
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    If we have added wrong collation name of the database and its columns the we can get some problem with other languages and special character. All other languages and characters will appear as ????? So we can alter collation of database and table even we have data in table using following sql commands:

    Database collation:

    ALTER DATABASE  CHARACTER SET utf8 COLLATE utf8_unicode_ci;

    Table collation:

    alter table  convert to character set utf8 collate utf8_unicode_ci;

    Column collation:

    ALTER TABLE  MODIFY  VARCHAR(255) CHARACTER SET utf8 COLLATE utf8_unicode_ci;

    Hope this information will help someone to change collation.

    mysql collation special characters
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