How Does Oracle search for fields containing a certain value in all tables of the current user?
Create or replace procedure MY_Pro_SearchKeyWord isV_ SQL VARCHAR2 (4000 );V_tb_column VARCHAR2 (4000 );V_cnt NUMBER (18, 0 );Cursor cur is SELECT 'select' | '"' | t1.table _ name | '". "'| t1.Column _ Name |'" '| ''' |' as col_name, NVL (COUNT (t. "'| t1.Column _ Name |'"), 0) as cnt FROM "'|T1.table _ name | '"t WHERE t."' | t1.column _ name | '"like'' %
I personally think this function is actually very useful. sys_connect_by_path (field name, The Connection Symbol between two fields). Note that the Connection Symbol here should not be a comma. Oracle will report an error. If you must use it, replace can be used as follows: Replace (field name, original character ,',').Also, you must create a tree before using this function. Otherwise, it is useless.For example:Objective: To write a project with the s
The statements are as follows:SELECT t1. table_name as "table name",T3.comments as "table description",T1. column_name as "field name",T1. Data_type as "data type",T1. Data_length as "Length",T1. NullAble as "is empty",T2.comments as "field description",T1. Data_default "Default Value"From cols T1 left join User_col_comments T2on T1. Table_name=t2. TABLE_NAME and T1. Column_name=t2. column_nameLeft JOIN User_tab_comments T3on T1. Table_name=t3. table_nameWHERE not EXISTS (SELECT
SELECT * FROM (select T1. table_name as "table name", t3.comments as "table description", T1. column_name as "field name", T1. Data_type as "data type", T1. Data_length as "Length", T1. NullAble as "is empty", t2.comments as "field description", T1. Data_default "Default value" from Cols T1 the left join user_col_comments t2on t1. Table_name=t2. TABLE_NAME and T1. Column_name=t2. Column_nameleft join user_tab_comments T3 on T1. Table_name=t3. table_name WHERE not EXISTS (SELECT
Oracle client connection remote Oracle service Chinese garbled problem, oracle Chinese
When the local machine remotely connects to the remote Oracle service, the following retrieval statement is written:
Select * from sys_employee
Chinese garbled characters appear in the results, but the remote server's PL/SQL retri
Oracle Performance Analysis 5: Index Structure and scan mode of data access methods, oracle Index
The previous article describes full scan. This article describes the index structure and scan methods, and describes each scan method later.When Oracle searches for the values of a specific column or multiple columns through an index, it performs an index scan. First
I. Overview of Oracle Architecture:Oracle's architecture refers to the composition of the database, the working process and principle, and the Organization and management mechanism of the data in the database. To understand the architecture of the Oracle database, you must understand the important concepts and major components of the Oracle system.The
Oracle concept (Oracle 10.2)
10. Application Architecture
This chapter defines the application architecture and describes how Oracle database servers and database applications work in a distributed processing environment. This architecture can be applied to almost any type of Oracle Database system environment.
This ch
Tags: let stp knowledge iptables Owner system SPFile splay Post Oracle LINUX 6.3 + Oracle 11.2.0.3 RAC + vbox Installation documentation 2015-10-21 12:51 525 people read Comments (0) favorite reports Classification:Oracle RAC Copyright NOTICE: This article for Bo Master original article, without Bo Master permission not reproduced. VBOX + Oracle Linux 6U3 +
1. Products used: ArcSDE 9.3 + Oracle 10.2.0.1
2. Problem description: arcmaploud is used for spatial data, and the operation is performed within several minutes. The arcmapis does not respond, the CPU usage of the data warehouse server is 100rmb, and the number of gsrvr.exe processes is 10 +.
3. Solution: Upgrade Oracle from 10.2.0.1 to 10.2.0.3 or. 2.0.4.
4. Cause: According to ESRI engineers, oracle10
phoneNumber in the row to 515.555.1235,Which locks the ghimuro row.
T7
select employee_id, email, phone_number from HR. employees where last_name = ' Himuro ' ; employee_id email phone_number -- --------- ------- ------------ 118 ghimuro 515.555 . 1234
In Session 2, The HR2 user queriesHR. employees for the Himuro record.The record shows the phone numberUpdate committed by session 1 at T4.
Oracle Silent Installation and oracle Silent Installation
Download the oracle installation package:
:
Note: To download oracle, you must register oracle.
Http://download.oracle.com/otn/nt/oracle11g
Download two packages:
Linux.x64_11gR2_database_1of2.zip
Linux.x64_11gr2_dat
=scott; password=xxx; "Providername= "Oracle.DataAccess.Client"/>
Modify the T4 template database.tt in the following places:
connectionStringName = "Mydbcontext"; Uses last connection string in config if not specifiedNamespace = "Domain.models";Reponame = "Mydbcontext";
Save, without a doubt the error:
// -------------------------------------------------------------
Steps for migrating a single Oracle DataBase instance to Oracle RAC:
-------------------------------------- Split line --------------------------------------
Detailed illustration of the entire process of VMware + Linux + Oracle 10G RAC
Install Oracle 11gR2 (x64) in CentOS 6.4)
Steps for installing
How to uninstall oracle and uninstall oracle
Oracle Database, also known as Oracle RDBMS, or Oracle for short. It is a relational database management system of oracle. It still occupies a major share in the database market. Lawren
How RAC Works and related components (iii)
Overview: write down the original intent and motivation of this document, derived from the Oracle Basic operating Manual of the previous article. The Oracle Basic Operations Manual is a summary of the author's vacation on Oracle's foundational knowledge learning. Then form a summary of the system, a review review, the other is easy to use. This document is
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