sql alter

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Windows 2008 Rman Backup scirpts (Backup script)-has been validated in a production environment

One. Task SchedulerWindows-Control Panel-Administrative Tools-Schedule task programs, right-click Task Scheduler Library, create taskSecond: The contents of the relevant script:Content in 2.1 Back_rman.bat:Set

Common RMAN problems in 11GR2

This article is a summary of Oracle Support's problems in the 11GR2RMAN backup process. Common RMAN problems in 11GR2: A few structural changes in 11gR2 have a wide impact on RMAN settings. the SnapshotBackup (Snapshot Backup) control file location

Model Management for new features of Oracle 11G (1)

DDL Wait options JillAcme Retailers DBA) tries to change the table named SALES and add a column of TAX_CODE to it. This is a common task; she executes the following SQL statement: SQL> alter table sales add (tax_code varchar2(10));

Only allow the specified Machine to connect to the SQLServer Server

Background only computers with an IP address can connect to the SQLServer server. Other clients are not allowed to connect to the server. The solution can be directly restricted in the firewall and only allow 1433 communication with the specified IP

Oracle11gDataGuard use duplicatefromactivedatabase to create st

Pyhsicalstandby of Oracle11g supports apply and Real-timequery in openreadonly. Therefore, physicalstandby stability and logicalst are available. Oracle 11g pyhsical standby supports apply and Real-time query under open read only. Therefore,

C # dynamically create an Access database, create a password-Based Access database, and change the Access password

In my previous work, I needed a brand new Access database. I could copy the database, or put the new database into the resource. I felt uncomfortable when I released the new database, or dynamic generation. To generate a database, you must use ADO

Laravel 5.4 solves the error caused by too long special fields in migrations. laravelmigrations

Laravel 5.4 solves the error caused by too long special fields in migrations. laravelmigrations Preface This article mainly introduces the information about the migrations error reported by Laravel 5.4 due to the long special field. We will share

In Laravel 5.4, migrate reports the following error: Specified key was too long error solution: laravelmigrate

In Laravel 5.4, migrate reports the following error: Specified key was too long error solution: laravelmigrate Preface As we all know, we often develop projects by team collaboration. Everyone is in their own local database. If you have asked your

Rman (lower)

Backup control file Method 1: Use the RMAN control file to automatically back up configurecontrolfileautobackupon; configurecontrolfileautobackupoff; Method 2: Use user-managed backup alterdatabasebackupcontrolfiletoXXXXXXXXX; -- binary file

Implementation of auto-expanding partitions in Oracle (use interval partition after 11 GB)

Implementation of auto-expanding partitions in Oracle (use interval partition after 11 GB) Implementation of auto-expanding partitions in Oracle (use interval partition after 11 GB) Create error table: Create sequence seq_error_log_id;Create

Mysql written in linux cannot be inserted, and the SQL statement becomes 'dirty' during replication.

1: The fault description is developed in linux. When modifying the mysql field, you can use phpmyadmin to directly modify and generate the modified SQL statement, and then copy it to word (libreoffice) after submission to the Project Management

Example of ORA-19527 and ORA-00312 error resolution in 10gDG

Example of ORA-19527 and ORA-00312 error resolution in 10gDG In the past few days, we have set up a 10g DG Windows 2008 R2 testing environment, mainly to re-build a production database DG for a customer tomorrow. Some problems have been found, so I

An ERROR 1452 ERROR occurred while adding a foreign key to MySQL.

An ERROR 1452 ERROR occurred while adding Foreign keys to MySQL. Today, when I learned how to add Foreign keys to the database, I first created two tables orders and order_items. The storage engine is InnoDB, all of them have the orderid attribute

Set a unique key for MySQL

MySQL sets the unique key environment: NavicatforMysql8.2 + MySQL Sever 5.1 problem: MySQL graphic setting unique key solution: this function is not available in graphical tools. You can use SQL commands. 1. modify a TABLE, for example, [SQL] ALTER

Method for returning mysql auto-increment id to 0

The method for returning mysql auto-increment IDs to 0 is always to initialize data for the current project, which is a headache and the auto-increment of database IDS is getting bigger and bigger, to re-start auto-increment from 1: Use the

Duplicate reports ORA-01017 permission issues

Duplicate reports ORA-01017 permission issuesEnvironment: OS:RedHat EnterPrise Linux 5.8x64 Cluster:Oracle Grid 11.2.0.4 Database:Oracle Database EnterPrise 11.2.0.4 Archive:RAC + DG During the configuration of DG today, the preliminary environment

Oracle Database SQL single-row functions-date functions

Oracle Database SQL single-row functions-date functionsPrefaceThe date functions of the Oracle database are very powerful and relatively large. I will sort it out for future reference.. Convenience for yourself and convenience for others!Common date

Oracle trigger 3-DDL trigger

Oracle trigger 3-DDL trigger Oracle trigger 2-DML trigger http://www.bkjia.com/database/201304/200549.html DDL trigger, which is triggered when a DDL statement is executed. Schema triggers and database triggers are divided according to the scope of

Oracle Data Guard Role Switching

About Oracle Data Guard Role Switching 1. Overview Oracle database uses its Data Guard technology to implement a remote security mechanism for Data in Oracle databases with real-time remote Data over the network. The implementation process is

An example of a complete Oracle table Creation

Creating a table in a complete Oracle table creation example is generally quite simple, but the Oracle table creation statements have many optional parameters, and some of them may not be used at ordinary times, I don't know how to use it when I use

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