1. Create data table---base (master skipped)
Orthodox method: Create [temporary] table name [if not EXISTS]
(Definition of the column item created)
[Table Options]
[Partitioning options]; #正统的创建方式, specific parameters, please refer to the MySQL
I. General restore and recoveryThe entire recovery process for RMAN can be divided into restoration (restore) and recovery (recover). They are very different in meaning, one refers to the physical meaning of the restoration and copy of the file, one
There are some conflicts in SQL Server2005 for adding, deleting, modifying and querying, which can easily cause deadlock. Now there is a database of the Filedetail table is two sets of procedures to operate, a set of procedures to increase, delete,
RMAN replication and the same machine copy operation procedures are the same, the difference is that we need to copy the backup files to the secondary library
Experimental platform: REDHAT Linux 4.7 + Oracle 10g
Target Library Information:
Oracle_
Data | database
--------------------------------------------
Experimental environment: WINDOWS + Oracle 10.1.0.2.0
Original database: ning[archive mode] Copy database: Test
Author:ningoo 2005-3-27
-----------------------------------------
13.3.3 database forms expert and Database operating table (DBD)
Delphi provides a development tool for users to develop a simple database application called database form Expert, which can be found under the Delphi System Menu Tool menu.
A
With MySQL, security issues cannot be noticed. Here are 23 things to note about MySQL tips:
1. If the client and server-side connections need to cross over and pass through an untrusted network, you will need to use an SSH tunnel to encrypt the
MONGODB command queries all database lists
CODE:
> Show DBS
If you want to see which database the current connection is under, you can enter the DB directly
CODE:
> DB
Admin
Want to switch to the test database below
CODE:
> Use
031 Create a unique index on a table that already exists
1. CREATE UNIQUE INDEX index_name on table_name (
Field_name [(Index_length)] [asc| DESC])
2. ALTER TABLE table_name ADD UNIQUE index| KEY
Index_name (Field_name [(Index_length)] [asc|
1, phpMyAdmin cannot export the Big data table
If you have hundreds of data tables in your database, and you have a lot of data table records that are more than 1G, there are many InnoDB data tables, this time with phpMyAdmin export, you will find
Eight Copy
Introduction to 8.1 image replicas
RMAN can create database data files, archive redo logs, or exact copies of control files. The Rman copy is a copy of these files, and the difference is only in the name and location changes. We don't
With image copy technology, you can get a complete copy of a database, quickly open the database, and avoid database restore and recovery for a long time. Here is the useIMAGE Copy makes a case of a full database restore. Since this test is
View instance number, name and log mode:SYS as [email protected]>select dbid,name,log_mode from V$database;DBID NAME Log_mode---------- --------- ------------1391294860 ORCL ARCHIVELOG1 row selected.RMAN:Login:[[email protected] ~]$ RmanRman>
If the database is already installed on RAID01 or RAID10, then does our database need to be backed up: required because our raid is only meant to ensure hardware corruption without disrupting the business. But the software fails or artificially
Using Oracle's own backup recovery tool, Rman (Recovery Manager) has several advantages:
Support for incremental backups
Ability to automatically manage backup files
Automated backup and Recovery
File validity Check for backups
It used to be that the synonym (synonym) in SQL Server was useless, so it never looked up its syntax format. Today, there is a problem, with synonym to solve the better. The problem is that I use multiple databases in my system, and because some of
--Test environment:Os:redhat Linux (64)Primary:ip:192.168.94.198Sid:dgdb1Hostname:dg1Db_unique_name:dgdb1database:10.2.0.1 (64)Standby:ip:192.168.94.199Sid:dgdb1Hostname:dg2db_unique_name:dgdb1_sdatabase:10.2.0.1 (64)--Preparation before DG
MySQL Replication databaseTo make it easy to copy a database quickly, you can use the following commandCopy the data from the DB1 database and the table structure to the NEWDB databaseCreate a new database#mysql -u root -p123456mysql>CREATE DATABASE
One, the choice question (1-25 no question 1 points 26-30 each question 2 points altogether 35 points)1) Assume that there is a user table that contains fields: userid (int), username (varchar), password (varchar), etc., the table needs to set the
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