查询数据库的编码集Oracle,MySQL

1、查询数据库的编码集Oracle,MySQL

1.1、oracle

select * from v$nls_parameters where parameter='NLS_CHARACTERSET';

查询版本：SELECT * FROM v$version

2、MySQL编码集

SELECT DEFAULT_CHARACTER_SET_NAME, DEFAULT_COLLATION_NAME FROM information_schema.SCHEMATA WHERE SCHEMA_NAME = 'demo_cg';