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The following articles mainly talk about Oracle Database Security: PL/SQL injection, I found a good reputation for Oracle database security on a website: PL/SQL Injection information for your sharing. We hope you will have some gains. SQL injection is an old security issue.

manipulation language and query statements to be included in the Block structure (block_structured) and the code process language, making PL/C a powerful transactional language. In Oracle database management, PL/SQL is a procedural language extension to Structured Query Language (SQL). The purpose of

After a piece of SQL code is written, you can initially predict the performance of the SQL at run time by looking at the SQL execution plan, especially if you find that the SQL statement is inefficient, we can analyze the problem of the SQL code by looking at the execution p

Label:After a piece of SQL code is written, you can initially predict the performance of the SQL at run time by looking at the SQL execution plan, especially if you find that the SQL statement is inefficient, we can analyze the problem of the SQL code by looking at the execu

; Scott @ cnmmbo> alter table t modify (Num number ); scott @ cnmmbo> insert into T select 'max _ value', power (10,126)-1 from dual; insert into T select 'max _ value', power (10,126) -1 from dual * error at line 1: ORA-01426: Numeric overflowscott @ cnmmbo> insert into T select 'max _ value', power (10,125) from dual; 10 to the power of 125 can Scott @ cnmmbo> insert into T select 'min _ value', power (10,-130) from dual; Scott @ cnmmbo> select * from T; num_msg num ------------ ---------- max

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

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

Tags: VARCHAR2 program development phase Statement EXE data IAT list typeIn PL/SQL program development, DML statements and transaction control statements can be used, but many statements (such as DDL statements) cannot be executed directly in PL/SQL. These statements can be implemented using dynamic

SQL plus and pl/SQL cannot connect to the remote oracle database, ploracle After the oracle client is installed, SQL plus and pl/SQL may fail to connect to the remote oracle database, which may be due to the following reasons: U

Source: http://www.dbasupport.com/oracle/ora9i/execute_immediate.shtml Reposted from: lovexueer's blog Execute immediate replaces dbms_ SQL package in Oracle8i. it parses and immediately executes dynamic SQL statements or PL/SQL blocks created when they are not running. the performance of dynamic creation and executio

The main content of this article is as follows: Chapter 1 Introduction to PL/SQL programming 1.1 SQL and PL/SQL 1.1.1 what is PL/SQL? 1.2 advantages or features of

Label:http://uule.iteye.com/blog/2061773 (source) Bulk Import Script : Open a Command Window > enter @ > It will let you select the file you want to import (you need to know the order of the imported files, Plsql will not automatically recognize this or write a script like LS) such as: @d:\svn\1.5 database Script \oracle\import2.sql http://blog.csdn.net/hbhgjiangkun/article/details/8208565 1, PL/

SQL * Plus is an environment provided by Oracle for users to use SQL statements and its procedural language PL/SQL to interact with the database. It is installed with the Oracle database system. In this environment, you can use SQL and P