date: < ;TD width=18% align="center">type: A B Record: Doris Nancy Michelle No. ID Reason Remark Status op 1 <select name="status1" OK NG 2 <select name="status2" OK NG 3 <select name="status3"
oracl 和db2 常用语法比较: 1、取前N条记录 Oracle:Select * from TableName where rownum <= N; DB2:Select * from TableName fetch first N rows only; 2、取得系统日期 Oracle:Select sysdate from dual; DB2:Select current timestamp from sysibm.sysdummy1; 3、空值转换 Oracle:Select
本文介绍Oralce数据库中,表名可以使用的最大长度。这个长度也是Oracle标识符的最大长度,为30个字符。
小编今天在建一个Oracle数据库表时,提示如下表名长度超过了最大值了。错误如下:
代码如下:
错误报告:
SQL 错误: ORA-00972: 标识符过长
00972. 00000 – “identifier is too long”
*Cause: An identifier with more than 30 characters was specified.
*Act