Summary of Oracle functions in the first week of work, oracle functions in the first week

Summary of Oracle functions in the first week of work, oracle functions in the first week 1.Oracle row-to-column and column-to-row The most common principle of Row-to-column conversion is the use of decode functions, Aggregate functions (sum () Max (

Oracle table partition, oracle Partition

Oracle table partition, oracle Partition The partition of the pivoel table can basically be divided into several categories:-Range Partition-Hash Partition-List partitions-Combined partitions: Range-Hash and Range-List.1. Create a partition table

Oracle redo management, oracleredo

Oracle redo management, oracleredo1. Category Several types of log files in Oracle Redo log files-> online Redo log Archive log files-> Archive log Alert log files-> alarm log Trace files-> Trace logs User_dump_dest-> User tracking log

Configure the snmp service in linux and snmp in linux

Configure the snmp service in linux and snmp in linux-- How to Configure snmp on Linux-- Attach an iso CD image file firstMount-o loop/soft/rhel-server-6.4-x86_64-dvd.iso/mnt/cdrom-- Check whether the snmp package is installed first.# Rpm-qa | grep

How to uninstall oracle11g and oracle11g

How to uninstall oracle11g and oracle11g Oracle 11g R2 x64 Redhat5 (rhel x64) 1. Use SQL * PLUS to stop a database [oracle@OracleTest oracle]$ sqlplus logSQL> connect / as sysdbaSQL> shutdown [immediate]SQL> exit2. Stop

Combined Query of Data room charging systems-inheritance of forms and Combined Query of charging systems

Combined Query of Data room charging systems-inheritance of forms and Combined Query of charging systems Do you still remember the combined query function when I first performed the data center? At that time, I started to judge one by one. At the

Restart uard method and restart uard Method

Restart uard method and restart uard Method-- DG restart procedure-- 1. Shut down the master databaseShutdown immediate;-- 2. Disable the standby DatabaseAlter database recover managed standby database cancel;Shutdown immediate;-- No listener. If

Change the method from Flash Recovery Area (FRA) to a new path, recoveryfra

Change the method from Flash Recovery Area (FRA) to a new path, recoveryfra Change the Flash Recovery Area (FRA) to a new path. Source:How to change Flash Recovery Area to a new location? (Documentation ID 305651.1) Objectives:This article describes

What is the difference between the unique key constraint of SQLServer and the unique index ?, Sqlserver Index

What is the difference between the unique key constraint of SQLServer and the unique index ?, Sqlserver Index I used to want to know what the difference was, but I forgot it because we seldom use the unique key constraint. A few days ago, my

[Translated from mos] visit the well-known ODBC driver list of Oracle Database, mosoracle

[Translated from mos] visit the well-known ODBC driver list of Oracle Database, mosoracle Source:List of Well Known ODBC Drivers For Accessing An Oracle Database (Document ID 1932774.1) Applicable:Oracle ODBC Driver-Version 8.0.5.1 and

Mybatis Association, mybatisassociation

Mybatis Association, mybatisassociation Type = "busines. administer. cp. model. CPBookCategory">Type = "java. util. HashMap">SELECT id, name, is_parent, pid FROM cp. tbl_cp_category where pid =#{ value };]>Explanation: 1) the busines. administer. cp.

OneSQL installation, onesql

OneSQL installation, onesql To install Onesql, you must install MySQL first, and both versions must be consistent. You can complete OnwSQL configuration by using mysqld or mysqld_safe of OnSQL. Http://www.onexsoft.cn /? Page_id = 3391 #

Leveldb learning: Cache and leveldb learning cache

Leveldb learning: Cache and leveldb learning cache Leveldb implements the cache buffer substitution algorithm by itself. For details, see the code cache. h and cache. c files. In leveldb, table_cache is implemented based on class cache as the

The database-Related file View stored in FRA, frafile

The database-Related file View stored in FRA, frafile V $ controlfile; v $ logfile; v $ archived_log; v $ backup_piece; in the view above v $ datafile_copy, the value of the IS_RECOVERY_DEST_FILE column is YES, indicating ================ in FRA. ===

Databases in SQL Server are transplanted to each other ., Port sqlserver

Databases in SQL Server are transplanted to each other ., Port sqlserver When sorting out BS template materials a few days ago, Shi Ge asked us to publish several websites on the server. I was responsible for the background release of Yonghe cash

Onsql and MySQL Start and Stop scripts and onsqlmysql scripts

Onsql and MySQL Start and Stop scripts and onsqlmysql scripts Start and stop onesql. A total of four parameters are {start | stop | restart | status}. You only need to slightly change the three file paths in the header to start and stop a single

Steps and notes for SQL * Net trace on the Oracle client, oracletrace

Steps and notes for SQL * Net trace on the Oracle client, oracletrace Steps and notes for SQL * Net trace on the Oracle clientReferences:How to Perform Client-Side Tracing of Programmatic Interfaces on Windows Platforms (Document ID 216912.1) My

MySQL foreign key insertion and MySQL key insertion

MySQL foreign key insertion and MySQL key insertionAdd a foreign key to the added data table:Syntax: alter table name add constraint FK_ID foreign key (your foreign key field name) REFERENCES External table name (corresponding table's primary key

The Virtual Machine ubuntu14 configures NFS server host win7 to mount hosts in the LAN, and ubuntu14win7

The Virtual Machine ubuntu14 configures NFS server host win7 to mount hosts in the LAN, and ubuntu14win7 Host win7 system, the system contains the Virtual Machine ubuntu14, other hosts in the LAN are also win7 system, all need to enable the NFS

Simplified fixed sorting of SQL computing and simplified SQL sorting

Simplified fixed sorting of SQL computing and simplified SQL sorting In database application development, we often have to deal with complicated SQL-based computing. Fixed sorting is one of them. Fixed sorting is not in ascending or descending order

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