-- 创建表 create table SX04_LBALANCE ( YEAR VARCHAR2(10) not null, PROGRAMNO VARCHAR2(40) not null, FDATE VARCHAR2(10) not null, FACCTCODE VARCHAR2(50) not null, FCURCODE VARCHAR2(3) not null, FAACCCREDIT NUMBER(19,4) default 0 not null, FAENDBAL NUMBER
查询字段描述sql SELECT 'comment on column ' || n.nspname ||'.'|| c.relname || '.' || a.attname ||' is '''|| col_description(a.attrelid,a.attnum) ||''';' FROM pg_class as c join pg_attribute as a on a.attrelid = c.oid join pg_namespace n on c.relnamespace=n
就不写文字描述了,直接用图和sql来表述吧. 这是测试数据,表名为 person 现在,我想按照性别进行分组,也就是字段 sex ,同时能将分组后的姓名全部显示出来. sql 语句如下: SELECT sex, GROUP_CONCAT(name) as name from person GROUP BY sex 搜索结果如下图所示 不指定分隔符的情况下,默认使用的字符是英文 “,” ,如果想使用特定的分隔符,需要在 sql 语句中指定. SELECT sex, GROUP_CONCAT(nam
1 PowerDesigner中在生成的数据库脚本中用name列替换comment列作为字段描述的方法如下, 依次打开Tools -- Execute Commands -- Run Script,运行以下脚本: Option Explicit ValidationMode = True InteractiveMode = im_Batch Dim mdl 'the current model 'get the current active model Set mdl = ActiveModel
1.mysql查看表字段和字段描述 SELECT column_name, column_comment FROM information_schema.columns WHERE table_schema ='hsex_dev_2271' AND table_name = 'channel_trade_detail'; 结果: