pl sql complete tutorial

Read consistency ensures that the query results are consistent with the data at the time when the query is initiated, regardless of whether other transactions have changed the data during the query. Assume that we have the following function to calculate the total salary of the department based on the department id: Create or replace function sum2 (p_deptno in number) Return number is -- PRAGMA AUTONOMOUS_TRANSACTION; Rochelle ret number; BEGIN Dbms_lock.sleep (5 ); -- DBMS_BACKUP_RESTORE

click Finish button to end the configuration. Go back to the Oracle Network Manager (Oracle Net Manager) main window and save the configuration by default to locate the local Service name profile under the Oracle installation directory (Windows d:/oracle/ora92/network/ Admin/tnsnames.ora). Configure the completed local service name as shown: Service naming under the tree directory can be changed to a service name consisting of any legal character by renaming the menu in the Edit menu, note t

to at least 4g,2 a G is very card.2. While hard disk space is generally no problem, set aside about 2G.3. The installation is complete, there will be an interfaceWe can either unlock the required account or change the user name in password management. Careful to find that there is such a sentence: The database control URL bit https://localhost:1158/em. This is equivalent to Enterprise Manager in SQL Server

Http://hi.baidu.com/jackyljlj/blog/item/860b020f912df6296159f37b.html PL/SQL developer: Powerful, convenient, and fast. Once used, it is absolutely inseparable! Its main strengths are as follows: 1. Edit table data (browsing table data is a natural issue) 2. Do you feel a little upset when writing long statements in SQL plus? You can do the same here. 3. Write a

Tags: complete no font index. SH His loop sts self-incrementI. Package and package body Package: A set of subroutines, variable definitions stored in a database. A subroutine in a package can be called by another package or subroutine. However, if you declare a local subroutine, you can call that local subroutine only in the block that defines the local subroutine. It has the characteristics of object-oriented programming language and is the encapsula

Tags: data-art roc. com type PL/SQL Article numeric cursorsDescription of the function usedFunction: Summation and differencePrototype: Getsumandsub (P1 in number, p2 in number, m out number, b out number)Parameters: M=p1+p2 B=P1-P2 　　　 1. Build the stored procedure firstThe Browse window on the left selects procedures, which lists all stored procedures, right-click the folder procedures the menu "new", pop

The PL/SQL structure is divided into three blocks: Declare, begin, exception. Where begin is essential.Block One:The role of declare is to declare variables, including the name of the variable and its associated properties, and whether to define the initial value.Its related properties include data type, length. It can be used when the initial value is defined: = can also be used with default, when the data

Tags: plsql developer table Structure ComparisonOriginal works, from the "Blue Blog" blog, Welcome to reprint, please be sure to indicate the following sources, otherwise, the legal responsibility to pursue copyright. Deep Blue Blog:http://blog.csdn.net/huangyanlong/article/details/45746893 Experiment: Plan the table for the experiment. Library User name User table A Library Scott Emp B Library Hyl Emp The

complete the configuration. Go back to the main window of Oracle Network Manager (Oracle Net manager) and save the configuration. By default, you can find the local service name configuration file in the Oracle Installation Directory (for example, d in Windows: /Oracle/ora92/Network/admin/tnsnames. ora ). The configured local service name is shown as follows: The service name in the tree directory can be changed to a service name composed of any va

;Iv. Summary of the experimentRecommended Reading Blog: http://www.cnblogs.com/knowledgesea/archive/2013/01/02/2841588.htmlHttp://www.cnblogs.com/hoojo/archive/2011/07/19/2110862.htmlStored procedure procedure is a set of SQL statements that are compiled to complete a particular function, stored in a database, and executed by specifying the name of the stored procedure and giving parameters.Stored procedure

If the OS is a Windows 7 64-bit system, the Oracle version for Oracle 11g 64 installs PL SQL Developer please refer tohttp://myskynet.blog.51cto.com/1471053/623957 HTTP://SUPPORT.MICROSOFT.COM/KB/2585547/ZH-TW1, PL/SQL developer remember login passwordWhen using PL/

Pl/SQL block that only contains the execution part Set serveroutput on -- enable output options Begin Dbms_output.put_line ('hello '); End; Instructions: Dbms_output is a package provided by Oracle locks (similar to java). This package contains some processes. put_line is a process in the dbms_output package. The set serveroutput on Clause indicates that the output result is enabled. If this clause i

Label:s = SELECT t.* from t w = WHERE b = between and l = '% ' o = ORDER by INSW = in (SELECT a From a where a) SW = Select t.* from t WHERE t sc* = Select COUNT (*) from t st = Select t.* , T.rowid from t f = for update u = Update t SET t. WHERE t 　　1. Save the above contents as Shortcuts.txt, copy to the X:\Program files\plsql developer\plugins directory, Win7 to pay attention to the permissions2. Menu select Tools-Perferences, Editor-autoreplaces3. Restart

The Oracle tutorial you are looking at is that Oracle uses Pl/sql to manipulate COM objects. The Pl/sql is extended by Oracle company to standard SQL, dedicated to programming in Oracle databases, and is a third-generation process

If the OS is a Windows 7 64-bit system, the Oracle version for Oracle 11g 64 installs PL SQL Developer please refer tohttp://myskynet.blog.51cto.com/1471053/623957 HTTP://SUPPORT.MICROSOFT.COM/KB/2585547/ZH-TW1, PL/SQL developer remember login passwordWhen using PL/

Oracle Database PL/SQL trigger 7) trigger www.2cto.com 1. two basic concepts: complete the constraints of complex business rules that are difficult to complete due to the integrity constraints of the database; monitor various operations of the database to implement the audit function. Triggers are divided into: DML tri

Tnsnames.ora file can also be copied from the Network\admin directory of the Oracle database home directory, as well as the Sqlnet.ora.) Then determine whether the host configuration is correct, if host is the hostname, you need to remove the domain name after the hostname) 3. Configuring the Oracle Home and OCI libaray for PL/SQL developerEnter the PL/

--f82: Execute a single statement--mouse cursor resting place F83: Execute multiple statements--select more than one statement F84: Beautify code--toolbar PL/SQL Beautifier5: Debug Stored Procedure-Select procedures in the Browse window to find the stored procedure that needs to be called, then select the stored procedure for debugging, right-click, select Test, in the test Scrīpt window that is defined as

during the transaction ● On commit preserve rows table name rows are visible during the entire session 3. 19:36:09 ORA-06502: PL/SQL: numeric or value error varchar type, the assigned value exceeds the defined length. for example, declare HH varchar2 (4000); hh: = mm | nn; -- Mm 3564, NN 600 PS: Possible reasons: 1. if it is an in parameter, it may be that the parameter is assigned a variabl

Two days ago, when a colleague uses Plsql, it is too troublesome to change the database by repeatedly entering the password.Below, I say here how to implement plsql do not need to enter a password to quickly login method:1, start logging in, first enter the password as usual login first2. Enter the page after login, select the tool option in the menu bar, select Preferences3. Then check the login history on the left page of the pop-up window and tick the password store4, then finally click on th