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  • mysql修改表、字段、库的字符集

    修改数据库字符集:

    ALTER DATABASE db_name DEFAULT CHARACTER SET character_name [COLLATE …];

    把表默认的字符集和所有字符列(CHAR,VARCHAR,TEXT)改为新的字符集:

    ALTER TABLE tbl_name CONVERT TO CHARACTER SET character_name [COLLATE …] 
    如:ALTER TABLE logtest CONVERT TO CHARACTER SET utf8 COLLATE utf8_general_ci;

    此处写utf8_general_ci有时候会报错,直接写utf8即可

    alter table logtest convert to character set  utf8;

    只是修改表的默认字符集:

    ALTER TABLE tbl_name DEFAULT CHARACTER SET character_name [COLLATE…]; 
    如:ALTER TABLE logtest DEFAULT CHARACTER SET utf8 COLLATE utf8_general_ci;

    修改字段的字符集:

    ALTER TABLE tbl_name CHANGE c_name c_name CHARACTER SET character_name [COLLATE …]; 
    如:ALTER TABLE logtest CHANGE title title VARCHAR(100) CHARACTER SET utf8 COLLATE utf8_general_ci;

    查看数据库编码:

    SHOW CREATE DATABASE db_name;

    查看表编码:

    SHOW CREATE TABLE tbl_name;

    查看字段编码:

    SHOW FULL COLUMNS FROM tbl_name;

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  • 原文地址:https://www.cnblogs.com/torchstar/p/10011553.html
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