triggers in pl sql

conditional verbs 15.2.9 to control the trigger order 15.2.10 Trigger Limit 15.2.11 Use an autonomous transaction 15.3 override trigger 15.3.1 override trigger 15.3.2 Define an alternate trigger 15.3.3 update with delete substitution trigger 15.3.4 nested table substitution trigger 15.4 System Event Trigger 15.4.1 Defining system Triggers 15.4.2 Trigger Event List 15.4.3 Trigger Property List 15.4.4 Property Function Use Example 15.4.5

Abstract: In the PL/SQL development process, SQL, PL/SQL can be used to meet most of the requirements. However, in some special cases, standard SQL statements or DML statements in PL/

the time required for network transmission. Therefore, the overall program execution performance will be significantly improved.Basic pl/SQL Next, we will introduce the compilation process based on blocks, functions, packages, and three advanced control statements of pl/SQL. Next, we will introduce the views,

,FunctionAndTriggerIs compiled and resident in the database, and can be called by SQL or other PL/SQL programs at any time. The procedure is slightly different from the anonymous PL/SQL program in the Declaration format: Create [or Replace] Procedure Including: The In par

In-depth analysis of SQL Server triggers and SQL A trigger is a special type of stored procedure, which is different from the stored procedure we introduced earlier. A trigger is triggered by an event and automatically called for execution. The stored procedure can be called by the name of the stored procedure. Ø what is a trigger? A special stored procedure that

Abstract: In the PLSQL development process, the use of SQL and PLSQL can meet most of the requirements, but in some special circumstances, using standard SQL statements or DML statements in PLSQL cannot meet your needs. for example, dynamic table creation or an uncertain operation must be performed dynamically. This requires dynamic SQL. This article describes PL

conversion from: http://www.51testing.com /? Uid-239867-action-viewspace-itemid-103705 SQLDifferences between statements, PL/SQL blocks, and SQL * Plus commands The SQL statement isDatabaseThe language of the operation object, including the data definition language DDL, data manipulation language DML,

Chapter 2 procedural performance tuning of PL/SQL applications I. Reasons for PL/SQL Performance problems When the execution efficiency of PL/SQL-based applications is low, it is usually caused by poor

Label:PL/SQL development that little thing----->pl/sql exception handling during development A user-written PL/SQL block inevitably has some errors during execution. The errors involved are not caused by the syntax errors of the program, but because the data being processed

Facilitates the operation of client/server environment applicationsFor a client/server environment, the real bottleneck is on the network. No matter how fast the network, as long as the client and the server to do a large amount of data exchange, the efficiency of the application run back to be affected. If you are programming with PL/SQL, placing such an application with a large amount of data processing i

I. Description Oracle provides a profiler toolkit that allows you to view the performance of each module during PL/SQL Execution. You can download this script from MOS: Implementing andusing the PL/SQL profiler [ID 243755.1] You can also download it from my csdn: Http://download.csdn.net/detail/tianlesoftware/4051100

1. Super-long PL/SQL code Impact: maintainability and Performance Symptoms: In complex enterprise applications, there are hundreds of thousands of rows of stored procedures or tens of thousands of rows of packages. Why is it the worst: Too long PL/SQL code is not conducive to reading, and third-party tools may also en

PL/SQL-related data dictionary and plsql-related dictionary Data Dictionary related to PL/SQLHttp://www.oracle.com/technetwork/issue-archive/2012/12-nov/o62plsql-1851968.html Sometimes, we encounter the following problems during PL/SQL development:1) What database objects d

Dynamic Content Summary: In the Pl/sql development process, the use of sql,pl/sql can achieve most of the requirements, but in some special cases, the use of standard SQL statements or DML statements in

Use of PL/SQL DBMS_ SQL package (1) (Study Notes), pldbms_ SQL Dbms_ SQL packageThe dbms_ SQL package is another method provided by the system to use dynamic SQL:Follow these steps to use the DBMS_

Original Title: Oracle and PL/SQL recipes: a problem-solution approach Author: (US) Josh Juneau Matt arena Translator: Political Commissar Name: turing Program Design Series Press: People's post and telecommunications Press ISBN: 9787115320766 Release Date: June 2013 publication date: 16 open pages: 376 versions: 1-1 category: computer> database> Oracle more about "Oracle

The results returned by the recent SQL query cause a ORA-06502 error to the PL/SQL variable. The error description is ORA-06502: PL/SQL: numeric or value error: character string buffer too small. obviously, the length of the character variable definition is not enough. It is

PL/SQL is an extension of Oracle's standard database language. Oracle has integrated PL/SQL into ORACLE servers and other tools, in recent years, more developers and DBAs have started to use PL/SQL. This article describes basic

Oracle----PL/SQLPL/SQL is a programming language that combines process language (procedural Language) with Structured Query Language (SQL)PL/SQL is unique to Oracle, and is an extension to the. Different database vendors have similar "dialects" that provide new features.Supp

Tags: made an opening alter object via table Send SEL introduction Read Catalogue One: Advantages of triggers II: The role of triggers Three: the classification of triggers Four: how triggers work V: Create a trigger VI: Manage triggers Co