Oracle

An article written in the previous troubleshooting section was accidentally found in the analysis of node cascade restart failures of rac clusters, which was recorded for future search. Www.2cto.com rac cluster node cascade restart Fault Analysis

The order in which oracle ebs disables and starts the database and application services to stop the Oracle Applications service is as follows: Stop the application services and then stop the database services. The order in which www.2cto.com starts

The status and usage of the undo segments and zones of the undo series learn only one thing about the undo tablespace: Save the old values. In AUM, segments are automatically generated, zones are automatically allocated and recycled, and they are

Oracle 10 Gb Deleted Data Query methods (1) as of timestamp eg. SQL code select * from t_table as of timestamp (sysdate-1/24) where... note: The table alias (2) as of scn SQL code SQL> select dbms_flashback.get_system_change_number from dual;

Common functions in Oralce SQL language (3) DATE functions operate data of the DATE type. Most of its input parameters are of the DATE type, and the output parameters are also of the DATE type 1. SYSDATE function. This function does not require any

ORA-600 (qersqCloseRem-2) error the customer's 10.2.0.4 RAC for Hp-un Environment encountered this error. Error message: Wed Feb 29 19:42:05 2012 Errors in file/opt/app/oracle/admin/orcl/udump/orcl1_ora_11261.trc: ORA-00600: internal error code,

Oracle cursor simple use a total of two types of cursor and sys_refcursor 1. The cursor uses the name field in the [SQL]/* simple cursor * students table, you can perform other table tests */-- Define declare -- Define the cursor and assign values

Solutions for handling Oracle SQL in over 1000 ,..., 1000,100). If the clause contains more than 1000 entries, an error is returned. This is mainly because of oracle's restrictions on performance. If you want to solve the problem, you can use where

Oracle note (5) single-row functions although each database supports SQL statements, each database also has the operation functions supported by each database. These are single-row functions, if you want to develop a database, you need to learn more

A function wmsys in oracle 10g and 11g. wmsys. the function of wm_concat is to merge multiple rows into one row. For example, if A person buys three stocks A, B, and C, we will record three data records normally, now we want to display the stock of

Oracle job description 1. set the initialization parameter job_queue_processes SQL> alter system set job_queue_processes = n; (n> 0) job_queue_processes. The maximum value is 1000. view the SQL> select name of the job queue background process,

Oracle creates a user, grants permissions, and deletes a user. oracle creates a user. The table space USERS has no permissions. alter user Username quota unlimited on users;// Create temporary tablespace test_temp tempfile 'e: /oracle/product/10.2.0/

Overview of Oracle Authentication Methods authentication is to identify users who need to use data, resources or applications. After passing the authentication, it can provide a reliable connection relationship for the database operations following

The Oracle file system structure is as follows: the Oracle file system is mainly divided into the following four parts: 1> control file (. CTL) 2> data file (. DBF) 3> log file (. LOG) 4> the first three file systems of other files www.2cto.com are

The scn and rowid in oracle explain the two most important concepts in oracle: scn and rowidscn www.2cto.com Scn: a number that is automatically maintained by the DBMS after the Oracle database is updated. In Oracle, there are four important SCN

Beginner: Oracle getting started tutorial 1. note: To DELETE a TABLE, you must use the truncate table Name When deleting all the data in a TABLE. Because the drop table and DELETE * from table names are used, the occupied space of the table in

Basic knowledge of oracle Database PL/SQL 1) Overview: the programming language formed by oracle procedural expansion in the standard SQL language is a unique feature of oracle, languages that support application development. Www.2cto.com 2) Syntax:

Oracle Database PL/SQL process and function 4) process www.2cto.com 1. basic concept: oracle allows you to create and store compiled PL/SQL programs in the database, including processes, functions, packages, and triggers. We can save the business

Declare a cursor that contains a table that does not have fields, where data. * is a table, and then add the fields in other tables to the sal_data cursor www.2cto.com SQL code cursor sal_data (cp_center_temp_id varchar2) is select data. *, post. id

Oracle TABLE is online redefined AS a partitioned TABLE (example) SQL> CREATE TABLE TT AS SELECT * FROM DBA_OBJECTS WHERE OBJECT_TYPE IN ('table', 'index', 'function '); -- the original table has been created. Www.2cto.com SQL> EXEC pipeline ('admin'