select b.name as tablename , a.rowcnt as datacount from sysindexes a , sysobjects b where a.id = b.id and a.indid < 2 and objectproperty(b.id, 'IsMSShipped') = 0
查询所有表名:select t.table_name from user_tables t;查询所有字段名:select t.column_name from user_col_comments t;查询指定表的所有字段名:select t.column_name from user_col_comments t where t.table_name = 'BIZ_DICT_XB';查询指定表的所有字段名和字段说明:select t.column_name, t.column_name from
最近在做Yii2的项目时, 发现了一个yii2 自带的Ar模型会自动对搜索出来的字段去重. 默认去重字段: id, 其他字段暂没发现 1. 例如: public function fields { //aboutClass表的ID id => about_class_id } 如果搜索关系是一对多的关系,那么搜索出来的about_class_id 有重复,这时你给about_class_id 命名为id,因为yii2对id字段默认去重,就会出现数据条数变少的情况 解决方案: public fu
public static void main(String[] args) throws Exception { String queryForScanUsers_SQL = "select a.username AS user_name,b.* from tbl_aaa a left join tbl_bbb b where a.id=? limit 10"; //去除WHERE和LIMIT String sqlRegex = "(select\\s+)(.*)(\\s+
function getResult() {//获取结果结合的函数,可以通过此函数获取查询后匹配的所有数据行. var o = jQuery("#jqgrid"); var rows = o.jqGrid('getRowData'); //获取当前显示的记录 console.log(rows) var rowNum = o.jqGrid('getGridParam', 'rowNum'); //获取显示配置记录数量