azhou 2019-10-23
查看所有表的字符集
SELECT table_name, table_type, engine, version, table_collation FROM information_schema.tables WHERE table_schema = ‘test_db11‘ ORDER BY table_name DESC;
查看单张表字段的字符集
SHOW FULL COLUMNS FROM sw_test_table11;
使用效果截图
转载:https://www.cnblogs.com/youjianjiangnan/p/9114791.html
修改数据库字符集
ALTER DATABASE db_name DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci;
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 utf8mb4 COLLATE utf8mb4_general_ci;
只是修改表的默认字符集
ALTER TABLE tbl_name DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci;
修改字段的字符集
ALTER TABLE tbl_name CHANGE title title VARCHAR(100) CHARACTER SET utf8mb4 COLLATE utf8mb4_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;