NAV: SLTechnology News&Howtos > Database >

• 

  Oracle Database 12c installation

  Oracle database Oracle Database, also known as Oracle RDBMS, or Oracle for short. It is a relational database management system of Oracle. It is a leading product in the field of database. We can say that Oracle data

  2022-06-01 15:05:28 Views: 298
• 

  MySQL stored procedures of 6Python full Stack path Series

  The MySQL stored procedure of the Python full stack path series is a collection of SQL statements. When the stored procedure is called actively, the internal SQL statements are executed logically. The parameter description of the parameter received by the stored procedure in is only used for the incoming parameter out is only used for the return value

  2022-06-01 15:05:28 Views: 251
• 

  The difference between dedicated database and shared database of Oracle

  Dedicated server process (Dedicated server) for dedicated server configuration, when logging in, Oracle always creates a new process that specializes in this connection service for the lifetime of the session. For each session, a new dedicated service appears

  2022-06-01 15:05:22 Views: 285
• 

  Analysis of query process of MySQL

  Query processing in relational database management systems is generally divided into four stages: see the figure below how to verify the relationship between these stages in MySQL? The database version of the experiment here: 5.6.16-64.2-56OS:CentOS release 6.5Kernel

  2022-06-01 15:05:22 Views: 266
• 

  Basic operation of oracle

  Operation on the structure of the table add add alter table table name drop (column character type (length)); delete modify change desc dept; lookup table structure to record operation select column name from table name where bar

  2022-06-01 15:05:21 Views: 256
• 

  A query of DISTICT

  The use of DISTINCT has always been known to DBA, which is used to filter weight. There is no need for us to question the accuracy of DISTINCT weight filter. But today, I suddenly don't know what to think, so I just want to question it. Does DISTINCT really guarantee that filtered objects do not have duplicate records?

  2022-06-01 15:05:21 Views: 290
• 

  The use of oracle pivot and unpivot functions

  Pivot format select from (inner_query) pivot (aggreate_function for pivot_column in (list of values)) order

  2022-06-01 15:05:21 Views: 278
• 

  Bulk export SSIS packages stored in the msdb library

  Use msdbgoIF OBJECT_ID ('msdb.dbo.usp_ExportSSISPkgs') IS NOT NULLDROP PROCEDURE dbo.usp_ExportSSISPk

  2022-06-01 15:05:20 Views: 225
• 

  Personally test redhat 6.5 to install oracle10g

  There are three points to pay attention to: the problem with the yum source. Environment setup issues before oracle installation. Errors and alarm problems during oracle installation. First question, http://qingwang.blog.51cto.com/505009/1551228.

  2022-06-01 15:05:11 Views: 236
• 

  Oracle series: (8) one-line function

  Single-line function: only one parameter input, only one result output multiline function or grouping function: there can be multiple parameter inputs, only one result output test lower/upper/initcap function, using dual dumb table select lower ('www.B

  2022-06-01 15:05:11 Views: 232
• 

  Oracle install Patch Times ollect2: ld terminated with signal 9 [Killed]

  Oracle installs patches Times ollect2: ld terminated with signal 9 [Killed] 1. Error message Make failed to invoke "/ usr/bin/make

  2022-06-01 15:05:11 Views: 278
• 

  Sql Index problem-where Field Index

  If you have a table TableTest, you have set an index for the CREATE_TIME field, with values such as' 2017-11-12 21 52-49'. So (1) sql is written as DATE_FORMAT (CREATE_TIME,'%Y-)

  2022-06-01 15:05:11 Views: 275
• 

  MongoDB performance test code

  Write 1 million records, build an index, and use the index for 100000 consecutive queries. Use admin;// connects to the database db.auth ("mongoAdmin", "123456"); / / logs in to the use test;// connection test library db.

  2022-06-01 15:05:11 Views: 238
• 

  Datax, synchronous data, mysql sqlserver bidirectional

  Mysql sqlserver two-way synchronization encounters a pit when using sqlserver to connect to the server (without going into details), so use the following alternative. Reference: mysql real-time synchronization to mssql solution https:// × × w.cnblo

  2022-06-01 15:05:07 Views: 274
• 

  Usage of package management tools rpm and yum

  Usage of package management tools rpm and yum 1. The use of rpm rpm was originally used by the Rde Hat Linux distribution to manage Linux suites, but it is popular because it follows GPL rules and is powerful and convenient. Gradually received other distributions.

  2022-06-01 15:05:07 Views: 248
• 

  Mysql 5.7Master-Slave synchronous gtid

  Environment: 1. (master) linux centOS 7 64-bit 2, (slave) linux centOS 7 64-bit 3, (mysql) it is best to require the same version, and the slave library cannot be higher than the master library version. It is recommended that 5.7centos 7 install ma by default.

  2022-06-01 15:05:07 Views: 235
• 

  CentOS of Linux Learning (XIII)-- installation and configuration of Mysql Database under CentOS6.4

  If you want to do j2ee development on Linux, you must first build a j2ee development environment, including the installation of jdk, tomcat, and eclipse. (this has been explained in detail in a previous essay on CentOS (7)-- Cen.

  2022-06-01 15:05:05 Views: 221
• 

  Several ways of creating connection Pool by spring

  There are many ways for spring to use connection pooling. Jdbc (not using connection pooling) and c3p0.dbcpjndi. The following code will be posted to describe these ways: 1.jdbc uses DriverManagerDataSource,Driv.

  2022-06-01 15:05:04 Views: 209
• 

  DBUtils introduction

  First, DBUtils introduces apache what is DBUtils, its role DBUtils is a database operation utility in Java programming, small, simple and practical. DBUtils encapsulates the operation of JDBC, simplifies the operation of JDBC, and can write fewer generations.

  2022-06-01 15:05:04 Views: 296
• 

  Steps to install SQL2012 database

  The first step is to store the object data in the vCenter list in the database, download the SQL Server 2008R2 file and burn it to a CD and put it into the CD drive. Click setup to execute SQL installation and enter the SQL product key. Install SQL serve according to the requirements.

  2022-06-01 15:04:34 Views: 234