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Chapter Sixteen Cursors

Chapter Sixteen Cursors

Chapter Sixteen Cursors. Objective: Introduction to cursors Use of cursors in a database record Implicit & explicit cursors Cursors & loops Cursors with parameters. Cursors. DEF: A cursor is a pointer to the context area .

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577 views • 57 slides
Chapter Eighteen Cursors

Chapter Eighteen Cursors

Chapter Eighteen Cursors. Objective: Introduction to cursors Use of cursors in a record variable Implicit & explicit cursors Cursors & loops Cursors with parameters. Cursors. DEF: A cursor is a pointer to the context area.

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484 views • 48 slides
Cursors

Cursors

Cursors. SQL Cursor. A cursor is a private SQL work area. There are two types of cursors: Implicit cursors Explicit cursors The Oracle Server uses implicit cursors to parse and execute your SQL statements. Explicit cursors are explicitly declared by the programmer. Cursors.

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380 views • 34 slides
Introduction to Explicit Cursors

Introduction to Explicit Cursors

Introduction to Explicit Cursors. What Will I Learn?. Distinguish between an implicit and an explicit cursor Describe why and when to use an explicit cursor in PL/SQL code List two or more guidelines for declaring and controlling explicit cursors

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525 views • 31 slides
Persistent Stored Modules (Stored Procedures) : PSM

Persistent Stored Modules (Stored Procedures) : PSM

Persistent Stored Modules (Stored Procedures) : PSM . Stored Procedures. What is stored procedure? SQL allows you to define procedures and functions and store them in the database server Executed by the database server Advantages

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577 views • 28 slides
Writing Explicit Cursors

Writing Explicit Cursors

Writing Explicit Cursors. About Cursors. Every SQL statement executed by the Oracle Server has an individual cursor associated with it: Implicit cursors: Declared for all DML and PL/SQL SELECT statements Explicit cursors: Declared and named by the programmer. Cursor.

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362 views • 27 slides
Program with PL/SQL

Program with PL/SQL

Program with PL/SQL. Lesson 3. Interacting with the Oracle Server. Extract a row of data from the database by using the SELECT command Make changes to rows in the database by using DML commands Control a transaction with the COMMIT , ROLLBACK , or SAVEPOINT command

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324 views • 24 slides
Explicit Cursors

Explicit Cursors

Explicit Cursors. Objectives. Distinguish between an implicit and an explicit cursor Use a PL/SQL record variable Write a cursor FOR loop. CURSORS. Every SQL statement executed by the Oracle Server has an individual cursor associated with it:

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522 views • 21 slides

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