Oracle

The Oracle installation directory is deleted manually, note that because the installation failed, automatic unloading is not to delete clean, be sure to do it yourself. Also delete the/programfiles/oracle. At this point, only the Oracle entity on

Without Oraclehoume, execute the environment variable fileSqlldr userid= DM/DM control =/home/oracle/libc/load.ctlLoad dataInFile '/home/oracle/libc/data.txt 'INSERT INTO Table Tmp_dm_user_total_monthFields terminated by ' \ t

Permissions:Create sessionCREATE tableUnlimited tablespaceConnectResourceDbaCases:#sqlplus/nologSql> Conn/as sysdba;Sql>create user username identified by passwordSql> Grant DBA to username;Sql> Conn Username/passwordSql> select * from

Use SEQUENCE -Create SEQUENCE create sequence emp_sequence        INCREMENT BY 1  --  Add a few    each time;     start with  1    --  counting    starting from 1;     NOMAXVALUE       --  does not set the maximum        NOCYCLE          -- 

1. View all table space sizesSelect Tablespace_name,sum (bytes)/1024/1024 from dba_data_files Group by Tablespace_name; 2. Unused table space sizeSelect Tablespace_name,sum (bytes)/1024/1024 from dba_free_space Group by Tablespace_name; 3. So the

Tag: OS uses AR for data code SP C typeThere are several uses for Oracle cursor loops, as described below.Define cursors and variables firstCURSOR C1 is a SELECT ename,ejob from emp WHERE deptno=10;V_name VARCHAR2 (10);V_job VARCHAR2 (10);The first

Download the Oracle installation package:：Note Download Oracle is required to register Oracle'shttp://download.oracle.com/otn/nt/oracle11gDownload Two packages:Linux.x64_11gR2_database_1of2.zipLinux.x64_11gR2_database_2of2.zip1, Upload: to the

Preface:Oracle after the installation is complete, you can open the Services window by executing the Control Panel | Administrative Tools | Services command, where you can view Oracle service information. ORACLEDBCONSOLEORCL The OEM console service

A simple understanding of Oracle's SCN is its own time function, like the Linux system's own time, and Oracle has its own set of time.When you clean the database shutdown immediate or use ALTER system checkpoint will write the value of the SCN to 4

1. Why should I use the package? A: In a large project, there may be many modules, and each module has its own procedures, functions and so on. And these procedures, functions are put together by default (such as in PL/SQL, the process is put

Before running the following script, you need to use the SQL that generated the AWR report (the program scripts are generally stored in the rdbms/admin under $oracle_home. The name is awrrpt.sql and you need to enter the number of days to generate

PLSQL _ How to determine how long it takes to insert a long script into 0.1 billion pieces of data v $ SQL/v $ sqltext/v $ sqlarea/v $ SQL _plan (CASE) (monitor SQL efficiency), sqlarea 2014-08-27 BaoXinjian I. Summary When executing a PLSQL

Oracle Database optimization and optimization steps Identify the current status of the system System server model CPU speed and quantity Memory size I/O device status Network Conditions Number of system users and number of concurrent

ORACLEPSU upgrade SummaryFirst, go to psu. first, let's take a look at readme.html. From this, we can know the detailed upgrade steps that have been rolled back. And avoids many pitfalls.Before executing the PSU, you must first confirm the version

Blob field value for accessing the oracle Data Link Access photo table Select * from zp @ dblink1 where a1 = '201312 '; Error: The ora-22992 cannot use the LOB locator selected from the remote table Change to the following method: Method 1:Drop

Oracle local management comparison data dictionary management tablespaceLocally vs. Dictionary Managed TablespacesOrganized from: http://www.orafaq.com/node/3.When Oracleallocates space to a segment (like a table or index), a group of contiguousfree

Create partitions on Oracle11g virtual Columns On Oracle 11g, partitions can be performed on virtual columns. This feature is useful. Let's perform a test: SQL> select * from v $ version;BANNER --------------------------------------------------------

Oracle10g (32, 64-bit) is successfully installed in win7 (32, 64-bit) and whether the installation is successful Win7-32-bit installation 32-bit oracle10g, win7-64 32-bit installation, 64-bit oracle10g can refer to this case. Reference:

WARNING OGG-01223 TCP/IP error 111 (Connection refused), ogg-01223refused I. Problem Description GGSCI (source_pc) 64> info all Program Status Group Lag at Chkpt Time Since Chkpt MANAGER RUNNINGExtract running EORA_T1 00:00:00 00:00:06Extract

Oracle SQL statement Optimization Although orm ing is used in the project, the optimization of the Oracle system is very valuable. Here we will summarize the commonly used statements from the perspective of SQL statements. 1. Optimization in the