Oracle

ORA-01552 non-system tablespace cannot use system rollback segments to handle ORA-01552: cannot use system rollback segment... troubleshooting error: the database is not completely restored today, but several tables need to be created as the base

The basic concept of oracle rac drm is in oracle RAC. Each instance has a data cache pool, and each block change coordinates resources among instances to maximize performance, this ensures data integrity. In a RAC cluster, each cached data copy,

Call oracle stored procedures and functions -- create or replace procedure pro_add (num1 number, num2 number, r out number) asbeginr: = num1 + num2; end; www.2cto.com create or replace procedure pro_minus (num1 number, num2 number, r out number)

Read/write operations for oracle blob -- create or replace procedure P_IMG_INSERT (v_filename VARCHAR2) IS www.2cto.com v_bfile BFILE; -- file pointer v_blob blob; dir constant VARCHAR2 (20 ): = 'test'; -- DIRECTORY for storing files, case sensitive

The default "&" in the set define off statement in SQL * Plus indicates the substitution variable. That is to say, as long as the symbol appears in the command, SQL * Plus requires you to enter the substitution value. This means that you cannot

Install Oracle 11g R2 on CentOS 6.2 X64 in KVM. install the Master System CetnOS6.2x64 Englis minimal install configure network IP and Bridge Mode vi/etc/sysconfig/network-scripts/ifcfg-eth0 vi/etc/sysconfig/network-scripts/ifcfg-br0 www.2cto.com

The logical structure of Oracle is a hierarchical structure. It consists of the following concepts: tablespace, segment, partition, and data block. The logical structure is user-oriented. The logical structure is used to develop applications using

Oracle Auto-increment field creation method-oracle sequence first assumes that there is such a table: www.2cto.com create table S_Depart (DepartId INT not null, partition name NVARCHAR2 (40) not null, DepartOrder INT default 0, constraint

The statement that shows the date of each day of a month meets the customer's requirements today. The data of each day of each month should be displayed even if there is no data on that day. The customer's needs are a wonderful effect, but it is

Create a trigger and report that the IN or OUT parameters are lost IN the index: 1. Use the "Oracle Enterprise Manager Console" trigger editor to report "lost IN or OUT parameters IN the index :: 1 "error. The specific SQL statement is: [SQL] CREATE

Oracle uses the translate function in oralce to determine whether a field is data or a string SQL code. The syntax is as follows: TRANSLATE (expr, from_string, to_string) refers to expr content, use the characters in to_string to replace the

How to authorize query of views starting with v $ in non-sys and system User stored procedures, such as v $ mystat and v $ statname. These View queries can be used in stored procedures only after authorization is displayed under sys. However, if we

Flashback: flashback drop environment: [SQL] sys @ ORCL> select * from v $ version where rownum = 1; www.2cto.com BANNER ---------------------------------------------------------------- Oracle Database 10g Enterprise Edition Release 10.2.0.1.0-Prod

A Redhat official ORACLE Installation document is displayed two days ago when you set Kernel Parameters in Linux. The modification description of Linux kernel parameters is very clear. Before installing Oracle, in addition to checking whether the

Exists () and in () Applications 1. example: emp table: Address Numberbj 40bj 30fj 20fj 10www.2cto.com dept table: Bearing AddsNO bjSO fj (1) exists () Application select sum (Number) from emp where exists (select * from dept where Bearing = 'so')

A while ago I wrote something about data table compression. Now I feel it is a good way to compress the data and migrate it directly. Now there is a TABLE: www.2cto.com create table TABLE_1(MONTH_ID VARCHAR2 (10 ),AREA_ID VARCHAR2 (10 ),SERI

I used to be confused about why index indexing cannot improve efficiency. Later, I found in many books and forums that there are three types of indexes. The default index is the B-tree index. This type of index has no advantage in dealing with

This document describes how to set the shortcut keys for PL/SQL in Oracle databases, this includes setting My Objects, remembering the password, and double-clicking to display table data by default after logon. We hope this will help you. In Oracle

The first 10 or 10th to 20th records ROWNUM obtained in Oracle are commonly used for paging output. for example, the SELECT name FROM member where rownum = 10 AND rn =. In actual use, www.2cto.com usually requires the latest records. Therefore,

EXP-00056: encountered ORACLE error 6550 solution problem: Use plsql/developer tool to export data error, example: www.2cto.com EXP-00056: encountered ORACLE error 6550ORA-06550: line 1, column 41: PLS-00302: component 'set _ NO_OUTLINES 'must be