Create a log file in oracle and an oracle Log File

Create a log file in oracle and an oracle Log File The syntax for creating a log file is as follows: Alter database database_name add logfile [group group_number](File_name [, file_name [,...]) [SIZE number] [reuse]; The syntax is described as

[PLSQL] variable binding, dynamic SQL, hard parsing and soft parsing, plsqlsql

[PLSQL] variable binding, dynamic SQL, hard parsing and soft parsing, plsqlsql**************************************** ********************************* *** Original article: blog.csdn.net/clark_xu Xu changliang's column******************************

[PLSQL] process procedure parameters and real parameters, plsqlprocedure

[PLSQL] process procedure parameters and real parameters, plsqlprocedure**************************************** ********************************* *** Original article: blog.csdn.net/clark_xu Xu changliang's column************************************

HBase basic API (java) Operations (add, delete, modify, and query), hbaseapi

HBase basic API (java) Operations (add, delete, modify, and query), hbaseapi // Package hbaseExec2;/** create a students table and perform related operations */import java. io. IOException; import java. util. arrayList; import java. util. list;

Set the default tablespace in oracle.

Set the default tablespace in oracle.In oracle, the user's default permanent tablespace is system, and the default temporary tablespace is temp. If all users use the default temporary tablespace, the system and temp tablespaces will undoubtedly be

Oracle query sequence and oracle Sequence

Oracle query sequence and oracle Sequence Query the sequence of a user, where user_name is the login name of your current database SQL> select SEQUENCE_OWNER, SEQUENCE_NAME from dba_sequences where sequence_owner = 'user _ name '; SEQUENCE_OWNER

Sqlserver cache plan-Clear the cache plan that is only used once, And Cache

Sqlserver cache plan-Clear the cache plan that is only used once, And Cache The plan cache is very large and will only be cleared once using the cache plan, instead of the entire cache. declare @ sid varbinary (64) declare cur01 cursor forselect

Create and modify temporary oralce tablespace, oralce Space

Create and modify temporary oralce tablespace, oralce SpaceA temporary tablespace is a disk space used to store the temporary data generated when you execute the order by lamp statement for sorting or summarizing. By default, all users use temp as

Batch Processing bat file solution mongodb detailed error: 10061 unable to connect because the target computer is actively rejected, mongodb10061

Batch Processing bat file solution mongodb detailed error: 10061 unable to connect because the target computer is actively rejected, mongodb10061 I am not really good at solving this problem in the form of batch processing files, thanks to Uncle

Oracle view, oracle view Creation

Oracle view, oracle view Creation Oracle ViewSimple View View a virtual table that contains a series of columns and row data with names, just like a real table.However, the view does not store the actual value in the database. The database only

Redhat6.3: redhat6.3oracle10g

Redhat6.3: redhat6.3oracle10gVersion description: Operating system version: redhat6.3 x64 Oracle version: 10.2.0.1 Experience: Some problems are encountered during version matching today. This is mainly caused by missing packages. Let's summarize it

Database Cluster (1) MySQLCluster entry, cluster mysqlcluster

Database Cluster (1) MySQLCluster entry, cluster mysqlcluster Recently, the company is planning to do ITOO products, so preliminary technical research is essential. This article briefly introduces MySQL Cluster: (1) Overview MySQL cluster is a

Hash and encryption (1), hash Encryption

Hash and encryption (1), hash Encryption Disclaimer: This article is based on the basic principles and differences of Hash and encryption and the learning and arrangement of engineering applications. 1. Differences between hash and Encryption (1)

PostgreSQL dropdb connection not closed, postgresqldropdb

PostgreSQL dropdb connection not closed, postgresqldropdb For example: Solution: 1. select * from pg_stat_activity where datname = 'lnarterydb' // query sessions in the database The query result has two PIDs. 2. SELECT pg_terminate_backend

Network-related or instance-specific errors occur when you establish a connection with SQL server.

Network-related or instance-specific errors occur when you establish a connection with SQL server. An error occurred while running the JOB after MSSQL 2005 database backup JOB is configured today: After some searches, it may be related to the

Oracle cluster and cluster tables, Oracle cluster tables

Oracle cluster and cluster tables, Oracle cluster tables Oracle clusters and cluster tables A cluster consists of multiple tables that share the same data block. It stores the related rows of these tables in the same data block, which can reduce the

Batch CRUD data of Mysqli, mysqlicrud

Batch CRUD data of Mysqli, mysqlicrud After learning to use the mysqli extension library, the overall feeling is more rational than the process-oriented method, object-oriented is the trend of the times, so we must not just use that old mysql

Using GoldenGate EVENTACTIONS to customize processing, goldengate

Using GoldenGate EVENTACTIONS to customize processing, goldengate EVENTACTIONS can specify some keywords to trigger some events. The keywords include IGNORE, DISCARD, ABORT, STOP, SHELL, TRACE, and LOG. For Example:GGSCI (zbdba1) 6> view param

One SQL statement interview question: for students who take all courses, SQL statements

One SQL statement interview question: for students who take all courses, SQL statements For a job interview a few days ago, there was an SQL question: three tables are provided: students, courses, and scores. A seemingly simple problem made me

Automated deployment of Mysql Distributed Database changes [Source Code], mysql

Automated deployment of Mysql Distributed Database changes [Source Code], mysql Author: skateTime: 2015/03/05   Automatic deployment of MySQL database changes   Overview:This Mysql database publishing program can automatically, quickly, and

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