MySQL database startup and Shutdown

MySQL database startup and Shutdown MySQL database server usually refers to mysqld, while command line mysql is a mysql client program. These two concepts are often confusing. Generally, the mysql server is started to start the mysqld process. After

Installing Oracle software using NFS

Installing Oracle software using NFS Yesterday, I used openfiler to create a nas storage system and install the Oracle software. Everything went well before that. A ora error was reported when I created a database. When I used nfs to install the

EXP-00091: Exporting questionable statistics

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Detailed operation process of MySQL master/Master Synchronization

Detailed operation process of MySQL master/Master Synchronization This document is recorded when MySQL dual-master is deployed online at the company. For security purposes, IP addresses are changed to intranet IP addresses. Version: # Mysql-V Mysql

MySQL multi-instance configuration details

MySQL multi-instance configuration details For centralized O & M of MySQL databases, you can deploy multiple MySQL instances on one MySQL database server. This function is implemented through mysqld_multi. Mysqld_multi is used to manage multiple

Build MongoDB Service Based on CentOS 6.5 Operating System

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Obtain Oracle implicit parameter information

Obtain Oracle implicit parameter information The Oracle Database initialization parameters mainly come from two internal Oracle Data Dictionary tables: X $ KSPPCV and X $ KSPPI usually the V $ Parameter view we query or the show parameter command

Whether the maximum number of connections is set in Oracle or an error is returned

Whether the maximum number of connections is set in Oracle or an error is returned There are 1100 data records to be updated, and an error is reported during connection. ORA-12518, TNS: listener cocould not hand off client connection According to

Servlet update execution error ORA-12518

Servlet update execution error ORA-12518 ORA-12518: TNS: listener cocould not hand off client connection This error is generally tested for database concurrency by multiple users, The backend executes an update using the servlet method, but the

Install Oracle 11g in RedHat Linux 6.0

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Path Problems in MySQL 5.5 Below are the parameters of my. ini in MySQL 5.5. Basedir = "C:/Program Files/MySQL Server 6.0 /" Datadir = "" path for storing the table structure Innodb_data_home_dir = "" This is the path for storing table data,

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Oracle | PL/SQL Unique index (Unique Constraint) Usage

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Configure the MySQL server for Master-master Replication

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CentOS6.x upgrade MySQL 5.1 to 5.6

CentOS6.x upgrade MySQL 5.1 to 5.6 Some virtual machines and cloud host providers still use the old version of the installation suite. The pre-installed application software version is very low. Some IDCs use ECs instances. The pre-installed MySQL

Build a GoldenGate bidirectional replication environment from Oracle to Oracle

Build a GoldenGate bidirectional replication environment from Oracle to Oracle Objective: To build a Goldengate two-way replication environment (DDL + DML supported) from Oracle to Oracle ). Environment: OS: Red Hat Enterprise Linux Server release 5

Oracle Index instance description-Basics

Oracle Index instance description-Basics An Oracle Index is an object in a relational database used to store each record location in a table. It aims to speed up Data Reading and integrity checks. Indexing is a highly technical task. Generally, we

DBMS_REPAIR package Usage Details

DBMS_REPAIR package Usage Details Oracle provides the DBMS_REPAIR package to discover, identify, and modify Bad blocks in data files. Any tool is not omnipotent. Using this package may cause data loss, inconsistent data returned from tables and

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