I need a table to store all the working days. I dont like loop, so I tried sql. The following is the SQL I used. insert into tb_working_days(data_date,day_type) select DATE_ADD(data_date,INTERVAL (select count(1) from tb_working_days) day),"W" f…
sql动态insert向varchar(MAX)中写入据的问题,在写入时出现列无效.后来发现,varchar要加''两个,号才可以 SET @SQL='INSERT INTO '+@TabName+' (one_content,is_screen) VALUES('''+@one_content+''','+cast(@is_screen as varchar(10))+')'…
ORA-00913错误 描写叙述:PL/SQL: ORA-00913: too many values 目标:编写一个能够循环插入数据的脚本 操作过程: SQL> desc tcustmer Name Null? Type ----------------- -------- ---------------------------- CUST_CODE NOT NULL VARCHAR2(10) NAME …
sql在insert时判断有无唯一性冲突,存在相同主键或唯一索引,则不创建 INSERT INTO table(field1, field2, fieldn) SELECT 'field1', 'field2', 'fieldn' FROM DUAL WHERE NOT EXISTS(SELECT field FROM table WHERE field = ?)…