In Oracle DB 12.1.0.2, SYS. ALL_CONSTRAINTS and SYS. ALL_CONS_COLUMNS are defined,

In Oracle DB 12.1.0.2, SYS. ALL_CONSTRAINTS and SYS. ALL_CONS_COLUMNS are defined, SYS. ALL_CONSTRAINTS is defined as follows:   CREATE OR REPLACE VIEW ALL_CONSTRAINTS ASselect OWNER, CONSTRAINT_NAME, CONSTRAINT_TYPE, TABLE_NAME,

Locate the INT $ DBA_CONSTRAINTS definition under $ ORACLE_HOME/rdbms/admin in 12c, dbaconstraints

Locate the INT $ DBA_CONSTRAINTS definition under $ ORACLE_HOME/rdbms/admin in 12c, dbaconstraints [oracle@rhel59 admin]$ pwd/u01/app/oracle/product/12.1.0/dbhome_1/rdbms/admin[oracle@rhel59 admin]$ grep -rn 'INT$DBA_CONSTRAINTS' ././e1201000.sql:138

Use of Merge in SQL Server, sqlmerge

Use of Merge in SQL Server, sqlmerge Many people know that ORACLE has the Merge keyword. In fact, SQL Server also supports Merge from the beginning of version 2008. You can also perform Update, Insert, and Delete operations in the same SQL statement

Jdbc connects to the mysql database and executes the insert statement to obtain the self-increasing primary key value. jdbcmysql

Jdbc connects to the mysql database and executes the insert statement to obtain the self-increasing primary key value. jdbcmysql Package cn. baokx; import java. SQL. connection; import java. SQL. preparedStatement; import java. SQL. resultSet;

Overview of the Online Redo Log, overviewredo

Overview of the Online Redo Log, overviewredo For oracle restoration, the most important data structure is the online redo log (online redo log). The online redo log contains at least two pre-allocated files used to store database changes. Online

MySQL Proxy and mysqlproxy

MySQL Proxy and mysqlproxy Author: zhanhailiang Date: MySQL Native Driver (mysqlnd) is introduced as a substitute for libmysqlclient in PHP5.3.0. Previously, MySQL database extensions mysql, mysqli, and pdo mysql All communicate with MySQL Server

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Thinking about orcle 11g select count (*) from v $ lock, orcle11g

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Configure the authentication password for redis and the authentication password for redis

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Timesten obtains SQL-related execution plans and timesten execution plans

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Introduction to Mondrian MDX and mondrianmdx

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Oracle environment variables and identifiers that you don't pay much attention to, and oracle environment variables

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Mysql obtains the time from last week to Sunday.

Mysql obtains the time from last week to Sunday. Declare _ LastWeekStartTime date; -- last week's start time declare _ LastWeekEndTime date; -- last week's end time; because the system is Sunday, it is required to subtract 1 set @ A = date_add

ORACLE-008: classification statistics, oracle008 Classification

ORACLE-008: classification statistics, oracle008 Classification Classification statistics are usually used to count the number of items or the number of items under a certain item. Simple, such as tab_test Tab_test record Id Co

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Kettle _ example of data extraction, kettle example  Original Works are from the blog of "Deep Blue blog". You are welcome to reprint them. Please note the following source when reprinting them. Otherwise, you will be held legally liable for

Install redis and centosredis in centos 6.5

Install redis and centosredis in centos 6.5 Version: redis-2.8.19.tar.gz Check whether the following dependencies are installed. If not, install them first. Otherwise, an exception occurs. Yum installgcc-c ++ Yum install-y tcl.   1. Obtain the

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