Oracle

[SCID news] Oracle has launched a program with AMD and sun to increase developers' support for their products. The three companies announced on Thursday that they will invest $30 million in a joint plan for independent software developers in

Oracle stored procedures support result sets,There is no research yet. For large data volume queries, this method is used to directly return oracledatareader,Is it faster than using other methods (such as views. The following describes how to use

Transferred fromOracle Database Automatic Export backup script (in Windows) Because WinRAR charges fees, I modified the script to use 7zip for compression. @ EchoOff @ Echo ===================================================== =================

Operate the table that triggers the trigger in the trigger, and use the Pragma autonomous_transaction option. 15.1 why cannot I roll back an audit using autonomous transactions? Generally, when a trigger is used to prohibit operations such as table

@ Echo off Rem ####################################### ####################Rem # Windows Server 2003 Oracle Database automatic backup batch processing scriptRem ####################################### #################### Rem obtains the current

View the relationship between the user and the default tablespace.Select username, default_tablespace from dba_users; 1. view the table structure: DESC table name 2. view the table of the current user: SelectTable_nameFromUser_tables; 3. view

  Oracle interview questions 1. Simple SQL query: 1): count the number of employees in each department Select Dept, count (*) from employee group by dept; 2): count the number of employees in each Department greater than one record Select Dept,

Demonstration classes that demonstrate situations in which JDBC accesses Oracle large data objects lob Import java. Io .*;Import java. util .*;Import java. SQL .*; Public class lobpros{ /*** Oracle driver*/Private Static final string driver =

Oracle 11g Audit The Oracle audit (Audit) function is used to monitor database operations performed by users. audit records can be stored in data dictionary tables (called audit records: SYS. in the AUD $ table, view dba_audit_trail) Or operating

Reprinted from: http://blog.csdn.net/atgc/article/details/2036799 Thanks to atgc, this problem has been studied for a day and finally solved !! When extracting Chinese characters from the table, you need to consider character sets. Different

Installing Oracle 10 Gb has encountered the cannot open shared object file error and Solution [Root @ DBA ~] # Su-Oracle [Oracle @ DBA ~] $/Mnt/runinstallerStarting Oracle universal installer... Checking installer requirements... Checking operating

   1. Install Oracle Linux 6.1 Here I use vbox for installation. For details, refer:   Oraclevirtual box installation instructions Http://blog.csdn.net/tianlesoftware/article/details/6826389   Install the following package during OS

Software environment: 1. Windows 2000 + Oracle 8.1.7 2. Oracle installation path: C: \ oracle Implementation Method: 1. Start-> Settings-> Control Panel-> management tools-> services Stop all Oracle services. 2. Start-> Program-> Oracle-orahome81->

Oracle Database 11GRelease 2 Standard Edition and Enterprise Edition software downloads OracleDatabase 11G2nd Standard Edition, Download Enterprise Edition Software Microsoft Windows(32Bit) CD 12 (2 GB). 1 Microsoft Windows (x64)CD 12 (2 GB). 2

The biggest advantage of Materialized view is that it can improve performance: by pre-computing the answer to store it, it can greatly reduce the load on the machine.Features:Less physical reads-scanning less dataLess write-do not sort and aggregate

Organize SchedulerThis part is due to the fact that the execution time of automatic statistics collection on the system is abnormal recently, and the execution time is defined in the morning (this is not a reasonable and reliable time ). this item

The page number in the notes for ORACLE Advanced Training Course 2nd learning notebook corresponds to Oracle9i Database Management Basics II ed 1.1 vol.1.pdf Guide: http://blog.csdn.net/magus_yang/archive/2006/10/10/1328283.aspx Author: jackyang

Common commands:Connect to sqlplusRun CMD in the command line to enter. For example, to log on in SYS mode, the command is as follows:(1). sqlplus "sys/zhb126 as sysdba" (2). sqlplus/nolog connect sys/zhb126 as sysdba (3). sqlplus Scott/Tiger Start

The Client Version is 10.2.0.1.0 32-bit, and the server is 9.2.0.4.0 64-bit. Client Connection server reported ORA-28547: Connection server failed, may be an Oracle Net management error.The status is as follows: C: \> sqlplus "sys/Oracle @ vm9i as

Standard JDBC 1.0: CHAR Java. SQL. Types. CHAR Java. lang. String Oracle. SQL. CHAR VARCHAR2 Java. SQL. Types. VARCHAR Java. lang. String Oracle. SQL. CHAR LONG Java. SQL. Types. LONGVARCHAR Java. lang. String Oracle. SQL. CHAR NUMBER Java. SQL.