系统参数文件为D:\Oracle\product\11.2.0\dbhome_1\network\admin\listener.ora写入d:\oracle\diag\tnslsnr\JAVA\listener\alert\log.xml的日志信息监听:(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(PIPENAME=\\.\pipe\EXTPROC1521ipc)))监听:(DESC
一.SQL语言的使用 1.IN 操作符 用IN写出来的SQL的优点是比较容易写及清晰易懂，这比较适合现代...
TNSLSNR for 64-bit Windows: Version 11.2.0.1.0 - Production 系统参数文件为D:\Oracle\product\11.2.0\dbhome_1\network\admin\listener.ora 写入d:\oracle\diag\tnslsnr\JAVA\listener\alert\log.xml的日志信息 监听: (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(PIPENAME=\\.\pipe\EXTPROC1521ipc))) 监听该对...
第一个exists没什么用，因为是EIMS_GWQUERY_FW 表本身，我把语句注释掉给成了直接条件。这样效率应该也会提高，另外，看你的第一种写法基本没有问题，之后第二个exists 中的字段名 你的原始语句与改成exists后的不一致，语句中我标出来了，另外多余的括号我也去掉了。下面的语句你试试吧。应该没有...
用下面的sql能查询出该保留的记录: select studentid,courseid,max(score)asscorefromtb_scgroupbystudentid,courseid 如果直接去删除不在上面的sql查出的结果集中的记录,会写出如下的sql: deletefromtb_scwhere(studentid,courseid,score)notin(selectstudentid,courseid,max(score)asscorefromtb_scgroupbystudentid...
ORACLE数据库SQL优化 not in 与not exits 各个表的数据量: sys_file_convert_queue 65989 sys_att_file 73061 sys_att_main 84405 sys_att_rtf_data 1507 优化前,执行时间大概2分多钟 SQL>set autotrace traceonly SQL>delete from sys_file_convert_queue2where ((fd_file_id is notnullor fd_file_id ...
[oracle/sql]关于清除重复,not in方案和not exists方案的对比,有这样一张表:CREATETABLEtb_sc(idNUMBERnotnullprimarykey,studentidintnotnull,courseidintnotnull,scoreintnotnull)用以下语句给它充值十万条数据:Inser
I'im getting bellow error while running utlrp.sql Windows 7 Professional 64bit SP1 64bit Oracle database is 64bit 11.2.1.0.4, duplicated from a 32bit database 11.2.0.4 I tried bouncing database but same error.Anyone had this error before or any idea what to do?
Oracle Database Cloud Schema Service - Version N/A and laterInformation in this document applies to any platform.Symptoms1. You try to run an Export Data Pump job, but the job fails with the following errors:$ expdp system/<PASSWORD> directory=<DIRECTORY_NAME> dumpfile=<DUMP_NAME>.dmp ...
Oracle Life Sciences Data Hub - Version 2.1.4.4 and laterInformation in this document applies to any platform.Symptoms On Oracle Life Sciences Data Hub (LSH) 2.1.4.4 version, When attempting to submit a PL/SQL program, the following error occurs: ERROR --- The job status is set to "Fai...