Oracle

Import the smc oracle import command: www.2cto.com Bat code @ echo off rem Oracle's sys User Logon password set ORACLE_SYS_PASSSWORD = 123456 rem CMS user name set ORACLE_CMS_USER = CMS800 rem CMS set ORACLE_CMS_PASSWORD = 123456 echo create a CMS

PLUSTRACE included in SELECT_CATALOG_ROLE Autotrace is already included in SELECT_CATALOG_ROLE, that is, you do not need to grant plustrace to user. SELECT * FROM DBA_TAB_PRIVS where grantee = 'select _ catalog_role' AND TABLE_NAME IN ('v _ $

Stored PROCEDURE --- create or replace procedure cuiyaonan2000 (stored PROCEDURE name) (parameter 1 in number, parameter 2 in number, parameter 2 in number, parameter 3 OUT Number // The above is in, which indicates the parameter you pass to the

An oracle 10g is installed in linux when I log on to sqlplus. After I log on to sqlplus, I see www.2cto.com SQL> startup ORACLE ??????? Total System Global Area 167772160 bytes Fixed Size 1218316 bytes Variable Size 67111156 bytes Database Buffers 96

PL/SQL script language cursor usage learning notes (1), cursor usage learning (a), cursor refers to the pointer in a result set, through this pointer movement, we can traverse the entire result set www.2cto.com (B). Use the cursor step (1) Declare

PL/SQL script language loop for while usage learning example (1), loop learning (a), loop www.2cto.com declare -- sum variable I variable 1 .. 100 v_sum number (5); v_ I number (5); begin v_sum: = 0; v_ I: = 1; loop v_sum: = v_sum + v_ I; v_ I: = v_

Oracle Database Table Structure and data export SQL statement can Oracle database table structure and data be exported as SQL statements? ------ Solution ---------------------------------------------------------- 1.exp username/password file = exp.

 Use: www.2cto.com (1): select case when 1 = 1 then 1 end from dual; Result: www.2cto.com (2): Table Structure: select (case when xm = 'gao' then' high sales volume 'when xm = 'zhu' then' sales volume surnamed zhu 'end ),Sal from table3; Result: www.

In linux, oracle needs to set two environment variables, ORACLE_HOME and ORACLE_SID, and then add the ORACLE bin directory to the PATH. Generally, ORACLE_SID = orcl is installed by default, ORACLE_HOME =/home/oracle/product/10 ...... in this form,

SQL PLUS exports data to generate a text file to export data in a table to generate a text file, column and column are separated by "|" www.2cto.com SET echo OFFSET feedback OFFSET newpage noneSET pagesize 5000 SET linesize 500 SET verify OFFSET

Oracle WHERE conditions and sorting 1. Condition Introduction The general form of conditions is the most common form of conditions: gyj @ OCM> Select * from t1 where name = 'gyj1 '; id name salary ---------- 2 gyj2 8000 conditions can only be

How to solve the problem of alter tablespace MAXTHONBI add datafile '/data/oracledata/biapp/maxthonbi2.dbf 'size 10 M autoextend on next 10 M maxsize 10G www.2cto.com after the linux Oracle tablespace is full can be added using the above method

Oracle relational uard Switchover on primary databaseSQL> select database_role from v $ database; DATABASE_ROLE www.2cto.com -------------- primary SQL> alter database commit to switchover to physical standby; Database altered. SQL> select open_mode,

Common Oracle SQL statements (1) preliminary understanding of insert delete update (DML) 1. INSERT (statement for inserting records INTO the data table) www.2cto.com A. INSERT data INTO the table: insert into Table Name (field name 1, field name 2 ,.

Stored procedure for writing to blob fields [SQL] www.2cto.com create or replace procedure write2blob (directions blob, v_blob blob, v_pos integer) is v_1time_maxlength integer; -- maximum amount integer of one read; -- total length v_blob_sub blob;

The difference between Connect, session, and process in Oracle: Session is called "session" in computers, especially in network applications ". Session: In computer terminology, Session refers to the time interval between an end user and the

Number of connections in Oracle 1. query the number of connections of the current process in the database: www.2cto.com select count (*) from v $ process; 2. view the number of connections to the current session of the database: elect count (*) from

What Does oracle do when executing commit? COMMIT is a very fast operation. When we release the commit command, the really difficult action has been completed and the data changes have been executed in the database, therefore, 99% of the tasks have

ORACLE11g IMP-00058 problem today, the boss gave me a task to put four. the dmp file is imported into the oracle10G Database. I installed the 11G database on my local machine. If I didn't want it, I would just export it. Use the import table

Oracle grouping function rollup, cubeRollup (Field 1, Field 2 ):Cube (Field 1, Field 2 ):Rollup (col1, col2 ,...) and cube (col1, col2 ,...) the usage difference lies in the cube in the record set summarized by rollup, and the summary of fields such