메타데이터 획득방법
SHOW DATABASES;
SHOW CREATE DATABASE dbname;
SHOW TABLES;
SHOW TABLES FROM dbname;
SHOW CREATE TABLE tblname;
SHOW TABLE STATUS;
SHOW TABLE STATUS FROM dbname;
SHOW COLUMNS FROM tblname;
SHOW INDEX FROM tblname;
SHOW TABLES IN INFORMATION_SCHEMA;
DESCRIBE INFORMATION_SHEMA.CHARACTER_SETS;
직접쳐보고 결과 확인-!
