近日在研究v$latch视图时,发现一个从未见过的数据类型.v$latch 中ADDR属性的数据类型为RAW(4|8) 同时也发现v$process中的ADDR属性的数据类型也为RAW(4|8).于是查了一下oracle 的SQL Language Reference文档,文档如下描述: The RAW and LONG RAW data types store data that is notto be explicitly converted by Oracle Database when
jdbc 读取oracle long raw 字段,里面存的是文本 参考: http://singlewolf.iteye.com/blog/278769 http://blog.csdn.net/restraint/article/details/7190265 http://blog.csdn.net/bq1073100909/article/details/49335491 String sql = "select condition from tbl t where t.a = ? an
exp jxfoc/JXFOC@ORCL file=d:\dd.dmp tables=(jxfoc.FLIGHT_PLAN_MAKE_LOG,jxfoc.METAR_CONTENT_FOR_MAIL) query=\"where flight_no='HO1380' and flight_date=to_date('2015-3-22','yyyy-mm-dd') and dep='VTBS' and arr='ZSPD'\"
[B]第一部分.SQL&PL/SQL[/B][Q]怎么样查询特殊字符,如通配符%与_[A]select * from table where name like 'A\_%' escape '\' [Q]如何插入单引号到数据库表中[A]可以用ASCII码处理,其它特殊字符如&也一样,如 insert into t values('i'||chr(39)||'m'); -- chr(39)代表字符'或者用两个单引号表示一个or insert into t values('I''m');
1.查看当前磁盘 [root@std u01]# fdisk -l Disk /dev/sda: bytes heads, sectors/track, cylinders Units = cylinders of * = bytes Device Boot Start End Blocks Id System /dev/sda1 * + Linux /dev/sda2 Linux swap / Solaris Disk /dev/sdb: MB, bytes heads, sectors/tr