摘要:
用for循环效率太低,采用以下sql <select id="selectNotin" resultType="com.gaiaworks.pjo.entity.CdAdmin"> select * from cd_admin a where a.type=2 and(select count(1) 阅读全文
摘要:
oracle SELECT DISTINCT atc.table_name AS "表名" ,atcom.comments AS "表注释" ,atc.column_id AS "字段序号" ,atc.column_name AS "字段名" ,atc.data_type AS "字段类型" ,at 阅读全文