Oracle

To delete a tablespace, delete the data file firstFor example, this exampleCREATEtablespace sthsgimgdb_space11 datafile'D:\ORACLEDATABASE\JinHuaDataBase\STHSGIMGDB_SPACE11_01'SIZE 1M Autoextend on NEXT50M MAXSIZE

First, the Export method:There are four ways to export data using the Exp/imp method:1. Table mode export: One or more specified tables, including the table definition, table data, table owner authorization, table index, table constraints, and

Some points to be aware of1. If you use an Oracle client to access the server, you must write the host name of the server (the name of the computer)How Oracle Creates a database2. Navigate how to remote Oracle

Analytic functions are new types of functions that are introduced in the 9i version of the Oracle database and are continuously enhanced in later versions. Analytic functions provide the ability to aggregate reference values across rows and levels.

1. Conflict resolutionIf there is a system that only you and me two users, and we are constantly in the system of a small number of data modification and query operations.If you're doing a batch of modifications in the database, and I'm doing a

Part of the Data Control statement (DML)1.INSERT ( insert a recorded statement into the data table )INSERT into table name (field name 1, field Name 2, ...) Values (value 1, value 2, ...);INSERT into table name (field name 1, field Name 2, ...)

One of the tablespace is read-only in your database. The Los S of allControl file forced you to recreate the control file. Which operation doYou need to perform after re-creating the control file and opening theDatabase?A. Drop and re-create the

In your database, online redo log files is multiplexed and one of theMembers in a group are lost due to media failure?How would recover the lost redo log member?A.import the last export of the database from theB.restore all the "the" group from the

1. DIRECTORYSpecify the directory where the dump files and log files resideDirectory=directory_objectThe directory_object is used to specify the directory object name. Note that directory objects are objects created using the Create DIRECTORY

--This article can be pasted directly into the Plsql run, the test table to create it yourself--Test name: Test Oracle Recursive--oracle version: oracle8i--Sample table: S_coalarea_test (Region table)--Table structure: country level (grade) 1 Level

To modify the/etc/oratab file under the root account:# Vi/etc/oratabFind Orcl=/db/app/oracle/product/11.1.0/db_1:n this lineSwitchOrcl=/db/app/oracle/product/11.1.0/db_1:yThat is, change the last n to Y, meaning that automatic start will not be

How to efficiently debug an Oracle stored procedure, especially a parent-child mesh call stored procedure1. Set breakpoints at Oracle stored procedure where breakpoints need to be setHow to set breakpoints: Click a line at the beginning of a row of

1.shutdown Normal or shutdown immediate close the databaseSql*plus:release 12.1.0.1.0 Production on Monday December 15 15:49:47 2014Copyright (c) 1982, Oracle. All rights reserved.Connect to:Oracle Database 12c Enterprise Edition Release 12.1.0.1.0-6

The Oracle database has three standard backup methods, namely export/import (EXP/IMP), hot and cold backup. Exporting a spare is a logical backup, and cold and hot backups are physical backups.First, export/import (Export/import)With export, data

Named system exception Cause Access_into_null Object Not defined Case_not_found if the appropriate when is not included in the case and no ELSE is set Collection_is_null Collection

First, MySQLin Java we usually use the plus "+" to achieve the concatenation of strings, MySQL can also use "+" to achieve, such as:Add test Data FirstCREATE TABLE Test ( ID INT, name VARCHAR, score FLOAT ); INSERT into Test VALUES (1

Create a table new_table and old_table table structure (no old_table Records)CREATE TABLE new_table as SELECT * from old_table where 1=0;Create a table new_table and old_table table structure (with Old_table Records)CREATE TABLE new_table as SELECT *

First, back up the original libraryRun{backup database format '/home/oracle/backup/db_%u_%t.bak '; backup current controlfile format '/home/oracle/backup/ Ctl_%u_%t.bak '; backup spfile format '/home/oracle/backup/spfile_%u_%t.bak '; backup

Simulation and handling of ORA-8102 ProblemsSQL> SELECT NAME, TYPE # FROM OBJ $ WHERE OBJ # = 49;Name type #----------------------------------------I _CON2 1SQL> SELECT TABLE_NAME FROM DBA_INDEXES WHERE INDEX_NAME = 'I _ con2 ';TABLE_NAME------------

Multiple datasets are used in the birt report ., Birt report multiple data This problem has been plagued for a few days and has not been found. Due to work needs, two datasets and two tables have been created. There is no problem between the first