Oracle

 ************************************************************************* * * * Original:blog.csdn.net/clark_xu Xu Changliang's Column************************************************************************ --Conversion of 1 rowID and

************************************************************************* * * * Original:blog.csdn.net/clark_xu Xu Changliang's Column************************************************************************  --unicode Coding Scheme--three standards

1: List all employees ' names, department names, and wagesSelect A1.ename,a1.sal,a2.dname from emp a1,dept A2 where A1.deptno = A2.deptno;2: List details of all departments and number of departmentsSelect A2.deptno,a2.dname,a2.loc,count (a1.empno)

Recently, using SAA, I found that many blogs on the internet are actually using more or less problems in later versions of Oracle 11.2.Either version changes the syntax changes or not enough, take a moment to list the new version of the use.*********

Minor version upgrades for Oracle: Upgrading from 10.2.0.1 to 10.2.0.4Upgrade package to be prepared: p6810189_10204_linux-x861. Current versionSql> Conn/as SYSDBAConnected.Sql> select * from V$version;BANNER------------------------------------------

Oracle Error: 1067 process terminated unexpectedlyI can run Oracle after the installation, after a period of time can not, on the internet to find a bit, the original is their own IP has changed. I have been using IP addresses.Will D:\oracle\product\

Note: The name of the table you want to query is capitalized. For example: ' USER '1. Find all indexes of the table (including index name, type, constituent column):Select T.*,i.index_type from User_ind_columns t,user_indexes i where t.index_name =

Deploying Oracle clients in the NET Setup programThe main thing is to do three pieces of work: packaging files, writing the registry, registering environment variablesDescription: My Oracle version is 9, test passed on the Advanced Server, the

Last Updated on January 28, 2015, 17:08:131 -----View the System User table space2 SelectUsername,default_tablespace fromuser_users;3 -----View table space usage4 SelectTablespace_name,sum(bytes)/1024x768/1024x768Cnt_mb fromDba_segmentsGroup

Alarm LogCluster node cluster components alarm log: $GRID _home/log//alert.logAlarm log for DB instance: $DIAG _destination/rdbms//sid/trace/alert_.logInstallation log filesDebug log for root.sh configuration script: $GRID

Application: Refer to all the field name codes of the data table on the web, use cursors to generate all field names of the specified single table followed by commas for the list of field names separated by the select comma from the string and other

rhel6.3 x64bit, Oracle 11.2.0.4 x64bit[Email protected] test]$ pwd/u01/app/oracle/diag/rdbms/test/test[[email protected] test]$ chmod u-x trace[[email Protected] test]$ lltotal 100drwxr-x---. 2 Oracle Oinstall 4096 alertdrwxr-x---. 2 Oracle

Oracle 11g Recovery of standby control files was unsuccessful when creating data guard. At Mount Standby database, I was told that the control file was not a standby control file, and that the specific information was "Ora-01665:control file is not

Query optimization methods and Gather_plan_statistics hint:after 10g we can use gather_plan_statistics hints to learn more about SQL execution statistics, using the following methods:If the Statistics_level parameter is set to all, or if the SQL

ProblemThe underlying database link is modified by oracle.client to the Odp.net connection database to improve execution efficiency.The following issues were found when executing the statementCmd.commandtext = "Update sys_user set

Steps for modifying Instance name SID in Oracle Database Sometimes we need to modify the instance SID of the Oracle database. The following is an instance tutorial for modifying the Instance name of ORACLE10.2 in Centos 6.5. If you are interested in

[Dan JIU Jian] Oracle knowledge point sorting (3) Import and Export, oracle knowledge pointLink navigation for this series: [Lone sword] Oracle knowledge point sorting (1) Table space and users [Gu JIU Jian] Oracle knowledge point sorting (2)

Oracle12cRAC cluster uses GNS for SCAN  1 Description   In the previous Blog, there were three methods for configuring SCAN in RAC: (1)/etc/hosts (2) DNS (3) GNS   The specific link is as follows: Oracle RAC cluster SCAN description Http://blog.csdn.

Oracle client-free PLSQLDeveloper Configuration Guide Oracle client-free PLSQLDeveloper Configuration Guide Step 1: Download instantclient-basic-win32-10.2.0.5.zip from the oracleofficial network to the local machine, decompress it, create an

Special Oracle character escape: & amp; and & #39;When we run the SQL show all command in SQL * PLUS, we can find a parameter: define & (hex 26), as shown below:Concat. (hex 2e)Copycommit 0Copytypecheck ONDefine & (hex 26)Describe DEPTH 1 linenum