Database Administrator

MySQL settings for master-slave synchronization are also noted online. I have nothing to say. Record the requirements of our company. MySQL cross-database and cross-Table synchronization:Replicate-wild-do-table = test %. % (both % are very

1. Delete all matching records with id values in Table T2. DELETE t1 FROM t1, t2 WHERE t1.id = t2.id or delete from t1 USING t1, t2 WHERE t1.id = t2.id 2. From MySQL Data Table t1, no matching records in data table t2 are found and deleted.

The following operations on Oracle are performed on the Linux platform! 1. su Oracle 2. sqlplus/logon 3. connect test/test as sysdba (test/test is an Oracle user and password) 4. startup 5. lsnrctl Preferred database

Use php (4.x) on a Linux machine to connect to the SQL server2000 Database Apt-get install php-odbc unixODBC-devel unixODBC Or Yum install php-odbc unixODBC-devel unixODBC And then from here (http://ibiblio.org/pub/Linux/ALPHA/freetds/stable/freetds-

This article describes how to install mysql without apt in Ubuntu and enable Automatic startup. 1. Install mysql 1. Download and decompressRun http://dev.mysql.com/downloads/mysql/5.0.html#downloadsto download a mysql. I downloaded the Linux (x86) 59

Xmanager secureCRT Environment: Install the Virtual Machine vmware in xp and the host-only virtual Linux system. The ip address of xp is 192.168.0.1, and the virtual machine Linux is 192.168.0.88. Install xmanager and secureCRT in xp. By default,

When we set up a Sybase test database server, we encountered a garbled problem. We didn't encounter this problem because the development database server had been installed and set up character sets for a long time. Therefore, some problems occurred

Step 1: PrepareGcc: some class libraries will be installed after installation, so there won't be many errors Sudo apt-get install g ++, glibc, glibc-source, build-essential, libmysql ++ dev, libmysqlclient15off, libmysqlclient15-dev I don't know

Learning and analyzing source code PostgreSQL has just started over the past few days. I have read related articles and made preparations. Others say that the source code should be compiled in Linux for later work. Linux on my computer is finally

Installing the MySQL database in Ubuntu 8.10 is very simple. The following is the MySQL installed in Ubuntu 8.10. the MySQL server should be started automatically. You can run the following command at the terminal prompt to check whether the MySQL

A friend asked about XMLDOM's inability to correctly set the character set, that is, xmldom. setCharset is invalid. For more information about Metalink, see Note: 251011.1. This is a Bug in Oracle. You can use dbms_output to bypass this issue. Test

Oracle Database provides the synonym management function. Synonyms are aliases of database solution objects. They are often used to simplify object access and improve object access security. When a synonym is used, the Oracle database translates it

Preface The Master-Slave database mechanism solves many problems, especially for applications with high read/write performance. 1. All write operations are performed on the Master node, and the Slave database node regularly reads the bin-log of

I. Temporary tablespace is mainly used in the following situations: 1. order by or group by (disc sort accounts for the main part ); 2. index creation and re-creation; 3. Perform the distinct operation; 4. union & intersect & minus sort-merge joins;

In a high-availability system, changing the definition of a table is a tough issue, especially for a 7 × 24 system. The basic syntax provided by Oracle can basically meet general modification requirements. However, if you change a common heap table

New project accepted, master-slave database replication synchronization Error, Error Code 1292 (invalid datatype) Error SQL: update wave set IS_WAVED = 0, LEVEL = 1, SOURCE_TB_NAME = null, SOURCE_ID = null, UPDATE_TIME = '2017-03-10 02:13:36. 0

A replica set is a master-slave cluster with automatic fault recovery. The most obvious difference between a master-slave cluster and a replica set is that the replica set does not have a fixed master node. You can use a replica set as a cluster.

After Oracle is installed, the oracleoradb10g_home1TNSlistener service cannot be started. Error 1067. Cause of error: because the local IP address is automatically obtained, the IP address obtained each time is basically different, and the

Just getting started with mongoDB, everything starts from scratch. After an afternoon, I completed the installation and sorted it out. I. I installed mongoDB in Linux. The steps are as follows: 1. to download the installation package, be sure to

First of all, you need to pay attention to the following issues before installation: 1. In the/etc/hosts file, the hostname of the local machine must correspond to lo (if you have changed the hostname, You need to modify the file) 2. The $