Oracle

Oracle replication is based on the table replication configuration process;Planning:Verify that the Oarcle database supports advanced replication features, True>select value from V$option where parameter= ' Advanced Replicaiont '2, whether to

1. Select the most efficient table name order (valid only in the rule-based optimizer):The parser for Oracle processes the table names in the FROM clause in a right-to-left order, which is written in the last table (the underlying table, driving

1. Open a session Session1Sql>select SID from V$mystat where Rownum=1;Sid158Sql>create table T (x int primary key);Table createdSql>insert into t values (1);Commitsql>update T1 set t=10 where x=1;2. Open a session againSql>select SID from V$mystat

1, if the target system does not exist in the same table space as the original system, will be imported into the default table space· 2.If the target system has the same tablespace as the original system, it will be imported into a table space of

https://my.oschina.net/realfighter/blog/349867Link Address: http://www.xx566.com/detail/143.htmlPreviously summed up an article, Oracle paging query statement optimization, at that time on the Oracle paging statement also took a bit of time to

1. association Update table OperationsFor example, we need to work on a table, generally update it, but sometimes the condition must be related, this oracle and MySQL have some differences, I directly say Oracle:Update Sys_role TSet T.password = ' q3

Oracle Scheduled Tasks:1, Dbms_jobs:Dbms_jobs is just an example of a jobs object, like for tables, EMP and dept are examples of tables.You can use the viewSELECT * from dba_jobs_running;To queryTo stop running the job:Dbms_job.broken (jobid,true);2.

Sqlplus '/as sysdba 'Manually generate a snapshot of an Oracle databaseExecute Dbbms_workload_repository.create_snapshot ();SQL script to execute an automated workload library@?/rdbms/admin/awrrpt.sql; @ means execute SQL script in the database?

(Les06 Networking) [1, 20180210], les0620180210Objective: To learn how to use Enterprise Manager to perform operations-create other listeners-create an Oracle Net service alias-configure failover during connection-control the Oracle Net Listener

Queries the table name and remarks in the database and explains the Oracle database macro processing instances. Explain the SELECT statement for querying table names and notes in the database and Oracle Database macro processing instances A.

Summary of Oracle AutoVue application scenarios and operations, oracleautovue 1AutoVue operation instructions 1.1 browse common files (images, Adobe PDF, Word 2003, Word 2007 XML, Excel97/2000XP, Excel 2010 XML, MS Outlook MSG, etc) 1. browse image:

ORACLE-two-Table connection index failure, oracle-index failure Symptom Recently, the customer has received feedback that a report data cannot be queried. Handling process After the involved SQL is dug out, no SQL exception is found, and no

How can I view the table space usage of an oracle database ?, Oracle Database -- 1G = 1024 MB -- 1 M = 1024KB -- 1 K = 1024 Bytes -- 1 M = 11048576 Bytes -- 1G = 1024*11048576 Bytes = 11313741824 Bytes SELECT a. tablespace_name "tablespace

Seven common Oracle functions and seven oracle Functions 1. decode Function Select id, NAME, DECODE (LEVER, 1, 'Professor ', 2, 'associate Professor', 3, 'mentor ', 'lecturer') POSITION, (select classnum from class t where t. NUM = S. NUM) num from

Read-Only partitions and subpartitions in OracleDatabase12c 2nd (12.2, Starting from Oracle Database 12c 2nd (12.2), you can mark partitions and subpartitions as read-only to protect their data from unexpected changes. You can use a READ-ONLY

When creating a database table, about ORA-00907: how to solve the problem of missing right brackets and left brackets ?, Missing ora-00907 Today, when using Oracle database to create a table, encountered the problem of "ORA-00907: missing right

ORA-01438: how to solve a problem where the value is greater than the allowable precision specified for this column ?, Ora-01438 precision Today, when inserting a statement after the table is created, this error is reported. For this error, I

Oracle AutoVue installation and configuration tutorial, oracleautovue 1 AutoVue Introduction AutoVue provides two solutions, Desktop and Client-Server, based on the customer's application conditions. The Destop Edition is mainly based on

Explain the example of Oracle analysis function (using row_number as the background page), using lerow_number When talking about Oracle's analysis functions, the most common functions are row_number, rank, and dense_rank. The specific usage has

Oracle two advanced query Summary (instance description), oracle Advanced Query I. CASE WHEN THEN ELSE END condition control Query 1. Simple CASE function usage Select id, STU_NAME case when score> = 90 THEN 'excellent 'when score> = 75 and score =