oracle database 11g pl sql programming

The ORACLE tutorial is Oracle PL/SQL getting started. I have already learned the basics of PL/SQL programming. This article will use a case study to deepen my understanding of these kno

Introduction: Oracle DatabaseThere is no constraint. Oracle databases must comply with certain rules. As we all know, few of us work in isolation; most PL/SQL development work is carried out in a relatively large organization. But we basically work with our own device in our own compartment. Almost no

a sub-block, the variables defined in the sub-block are used. The variables defined in the Child block cannot be referenced by the parent block. Similarly, the GOTO statement cannot jump from the parent block to the sub-block. Otherwise, it is legal.Outer BlockDeclareA_number integer;B _number integer;Begin-- A_number and B _number are available hereDeclareC_number integerB _number number (20)BeginC_number: = a_number;C_number = outer_block. B _number;End sub_block;End out_block;SummaryThis art

-defined type. Basic Data type description Binary integer integer type data (note: binary binary) number[(precision, fractional)] can represent integers and floating-point numbers CHAR [(maximum length)] string, up to 32 767 bytes in length Long string Long raw-to- VARCHAR2 (maximum length) consistent with VARCHAR2 in the database DATE and date-in the database Boolean evaluates to True and False In addition

nextval will increment the value of sequence once, so if you use multiple nextval in the same statement, the value is different. 3. Modify the sequence alter SEQUENCE You are either the owner of the SEQUENCE or have alter any SEQUENCE permission to change the SEQUENCE. You can alter all SEQUENCE parameters except start to. If you want to change the start value, you must DROP SEQUENCE and recreate the SEQUENCE. Alter SEQUENCEALTER SEQUENCE cux_demo_sequenceINCREMENT by 10MAXVALUE 10000CYCLE--fro

corresponding automatic workload database AWR) data. Transfers the Simulated load to the Oracle 11gR1 RAC test environment. Pre-load, including re- ing to connections of different load balancing services. Replay the load in the Oracle 11gR1 RAC test environment. Identifies application performance problems, data differences, and error differences. I will use the

1) Install Oracle 11g 64-bit, I use the version: Http://www.oracle.com/technetwork/database/enterprise-edition/downloads/112010-win64soft-094461.html2) Install the 32-bit Oracle Client (instantclient-basic-win32-11.2.0.1.0) as: Http://www.oracle.com/technetwork/database/feat

explained in more detail in the following cursors. B. Ref Obj_type: When writing object types with reference object types, in order to share the same object, you can use ref to reference the object type, and ref is actually a pointer to an object instance.7. LOB variables1) LOB variable LOB variable refers to a variable that is used to store large amounts of data. 2) Category A. Internal lob: stored in the database and supports transactional operatio

Tags: SQL language Data System Self programming old version png des oafPL/SQL is an integrated development environment for oralcle databases and is the primary tool for many Oracle database developers. Because PL/

Label:A cursor is a private workspace that holds the results of the execution of an SQL statement.When executing an SQL statement, the database server opens a workspace where the results of the SQL statement are saved.There are two forms of cursors in the Oracle

(oracle_home) However Oracle does not recommend Using OCFS2 anymore for RAC systems, for the following reasons:-OCFS2 and Grid infrastructure (Oracle cluster-ware) is a separate cluster-wares. Therefore you would is running with 2 cluster-wares instead of one.-OCFS2 won't gain any new functionality in regard of databases. OCFS2 'll is used for Oracle VMS and all

Tags: share development client Analytics admin hint Dev Oracle strConfiguring the Environment Oracle Service SideOracle_winx64_12c_database.iso Oracle ClientInstantclient-basiclite-nt-12.1.0.1.0.zip Integrated development EnvironmentPL/SQL Developer 10.0.5.1710 Configuration steps Make sure that

Tags: Record rowtype database query name EDR result proc SeleI. PL/SQL (Procedure Language/sql) programming language1. ConceptPL/SQL is an extension of the Oracle

Supports running OCI, occi, JDBC, JDBC-OCI files, support for multiple languages.Basic Lite is a basic Lite version that only contains English Error Descriptions and only supports Unicode, ASCII, and European character sets.Therefore, if the database server is a Chinese character set (such as simplified chinese_china.zhs16gbk), you must download the basic version. 1. Download and decompress the package to any directory. For example, X: \ instantclien

; Dbms_output.put_line ('time is:'| | Mnttime); --Set Serveroutput on/off turns on or off the screen display dbms_output.put_line ('ok, im fine' ); end; /You can save the statement to a file and then call it with the "@/path/filename.sql".Substitution variables:SELECT empno, ename from EMP WHERE deptno= Department number;If the replacement variable provides data for a numeric column, you can drink it directly, or if you provide data for a character type or a date type, you ne