pl sql sample programs

Comparison of the Efficiency of three types of cursor loops in pl/SQL mainly compares the following three formats: 1. one open cursor is processed; loop fetch cursor INTO variable; exit when condition; end loop; CLOSE cursor; 2. batch Processing of open cursors; FETCH cursbulk collect into collection variables; CLOSE cursors; 3. implicit cursor for x in (SQL stat

Concept PL/SQL (procedural language/sql) is an Oracle-specific language that is extensible on SQL, not only for writing SQL languages, but also for defining variables and constants. The stored procedures, functions, etc., written by

The Oracle client is quite annoying. To deploy applications connected to it, you usually need to install its client first.ProgramIt is required to write the Registry on the target machine. If you are not clean, you may still be stuck in the following: when other programs on your machine depend on the Oracle x64 program, and they are probably not written by you at all, so you do not dare to tamper with the server, but you may need a

Oracle | PL/SQL Check constraints usage 1. Objectives The instance explains how to use CHECK constraints (create, enable, disable, and delete) in Oracle) 2. What are Check constraints? The CHECK constraint adds additional constraints to the columns of the table. Note: CHECK constraints cannot be defined in VIEW.Only the columns defined by the CHECK constraint must be included in the specified table.The CHEC

The PL/SQL package is a group of logically related PL/SQL types, variables, and subroutine pattern objects.The package will have two mandatory sections:1. Definition of packaging specification2. Package body or definitionI. Definition OF PACKAGING specificationA specification is an interface to a package. It simply dec

Oracle TnsPing is correct, pl/SQL ora-12154 cannot resolve the resolution of the specified connection identifier to tnsnames in C: \ oracle \ ora92 \ network \ ADMIN \ SAMPLE. copy the ora file to C: \ oracle \ ora92 \ network \ ADMIN and try again! Install only one version of client 1. Open. Start -- program -- Oracle-OraHome92 -- Configuration and Migration Too

The permission control in win7 is indeed good, but sometimes it is hard to understand. Today, an Oracle database is installed on an XP Server, and an Oracle client is installed on my win7 server. The configuration is successful, but PL/SQL cannot be connected to the database when it is started, and no prompt is displayed .~ . Net configuration assistant is configured properly and the connection test is suc

-----------------------------------------------------------------------------------Backup and restore database skipped. In the following illustration the application scenario 207---231, crossed.。。。。Database network configuration is skipped, it is not very common in the actual application. So. No specific explanations are given here. Let's say there's time to sort it out later.The application scenario is crossed----244.。。。。。。。-----------------------------------------------------------------------

-----------------------------------------------------------------------------------Back up and restore the database skip over and explain the scenario 207---231, over ...Database network configuration is skipped, it is not very common in the actual application, so, here first not detailed explanation, if later time will be organized.Application scenario----244 over .....------------------------------------------------------------------------------------------------------

Label:  Pl-sql storage functions and stored procedures ORACLE provides the ability to store PL/SQL programs in a database and to execute them wherever they are. This is called a stored procedure or function.Procedures and functions are collectively referred to as