Oracle

(1) CREATE TABLE spaceCreate Tablespace space NameDataFile ' e:\ filename. dat 'Size 1MAutoextend on(2) Create a user--No, No.--create user username identified by password;--grant connect,resource to user name;--grant create any view to user

Oracle is one of the most used databases in the world, and Active Server Web pages (ASP) is a powerful server-side scripting language that is widely used to create dynamic Web pages. Many ASP developers have been considering the ability to use ASP

Error:Warning:rpmts_HdrFromFdno:Header V3 DSA Signature:nokey, key ID 1e5e0159Solve:RPM--import/etc/pki/rpm-gpg/rpm*Error:Ora-12705:cannot Access NLS data files or invalid environment specifiedSolve:Under Linux, if the environment variable Nls_lang

Dbms_metadata.get_ddl1. Get DDL statements for a table or indexSELECT Dbms_metadata. GET_DDL (' TABLE ', ' DEPT ', ' SCOTT ') from DUAL;Select Dbms_metadata.get_ddl (' INDEX ', ' pk_dept ', ' SCOTT ') from dual;2. Get the DDL for all tables, indexes,

A trigger is a specific event that occurs when an automatic code block is executed automatically, and the user cannot control that the user can only control the triggered event, the triggered action, and the triggering process is performed

Oracle establishes tablespaces and usersSteps to establish a tablespace and User: Create user username identified by "password"; authorization: Grant create session to username; Grant CREATE table to username; Grant create

1. Start-> Settings-> Control Panel-> Management Tool-> Service stop all Oracle services.2. Start-> Program->oracle-orahome92->oracle installation products-> Universal Installer Uninstall all Oracle products, but Universal Installer itself cannot be

Four ways Oracle increases and decreases table spaceMeathod1: Adding Data files to table spacesALTER tablespace app_data ADD datafile' D:\ORACLE\PRODUCT\10.2.0\ORADATA\EDWTEST\APP03. DBF ' SIZE 50M; Meathod2: Add data file and allow data file to

Oracle query Chinese old appeared garbled, but not all garbled, the data access layer is used by others and can not see the code, write their own C #. OracleClient is normal again.On the internet to find a plan, did not expect it!Here are the steps

There are 1100 data that need to be updated, I always error when I connect.ORA-12518, Tns:listener could not hand off client connectionThe maximum number of connections is set according to the article: 1200,session is 1200*1.1+5=1325, but Tomcat is

In a 64-bit Window operating system, the Orcal Data Access server and client versions correspond to communication problems. 2014-11-04 Reference: http://blog.163.com/huiping_z/blog/static/80541312201310191020557/ Can the 64-bit operating system

A simple example shows Oracle's "selfless" robustness Oracle's strength lies in its ability to always help you choose the right execution plan, even if you give it wrong instructions. Lab: 1. Create a test table: Collect statistics: Create a

General framework of Oracle The physical structure of Oracle includes parameter files, control files, data files, redo log files, archive files, and password files. 1.1 parameter file This includes a large number of settings that affect the

Single-row oracle FunctionsZookeeper Single Row Function①. Character FunctionsLOWER (x): converts each word in x to lowercase.UPPER (x): converts every word in x to uppercase.INITCAP (x): converts the initial letter of each word in x to

Modify the redolog size of the dead ledg bad environment master database-- Standby database standbyThe four redologs in the master database were previously 50 MB in size.SQL>Alter database recover managed standby database cancel; Database altered.

Manual database deletion tutorial in Oracle and oracle Database tutorial In many cases, or when you cannot use the dbca tool, you need to manually delete the database. You can use the drop database Command to delete a database manually.Including the

Share SQL scripts that check whether foreign keys are indexed in Oracle, oraclesql Copy codeThe Code is as follows:Column columns format a30 word_wrappedCOLUMN tablename format a15 word_wrappedCOLUMN constraint_name format a15 word_wrappedSELECT

Script sharing for viewing slow query progress in Oracle, oracle progress The SQL statement of a large Oracle transaction often does not know where it runs. You can use the following SQL statement to view the execution progress. Copy codeThe Code is

Oracle displays the SQL statements in which logical and physical read resources are ranked View the SQL statements before the first 10 logical reads: Copy codeThe Code is as follows:Set linesize 300;Set pagesize 300;Set long 50000;SELECT *FROM

MySQL show index from table command SQL script sharing in Oracle, oraclemysql Experiment Data initialization: Copy codeThe Code is as follows:Create table t as select * from hr. employees;Create index inx_t1 on t (employee_id, first_name desc,