Oracle Database 11g: Programmazione PL/SQL (DMA D49992)


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Tipologia Corso
Metodologia Online
Ore di lezione 5 ore di lezione
  • Corso
  • Online
  • 5 ore di lezione

This course introduces students to PL/SQL and helps them understand the benefits of this powerful programming language. In the class, students learn to create PL/SQL blocks of application code that can be shared by multiple forms, reports, and data management applications. Students learn to create anonymous PL/SQL blocks and are introduced to stored procedures and functions. They learn about declaring variables, trapping exceptions and they also learn to declare and control cursors.In class students learn to develop, execute and manage PL\SQL stored program units like procedures, functions, packages and database triggers. Student also learns to manage object dependencies and recompilation of invalid objects. This course also describes the characteristics and ways of manipulation of large objects. Students are introduced to the utilization of some of the Oracle-supplied packages. Learn To: Create Executable Section and write Control Structures Create and manage Procedures, Functions, Packages and Triggers Work with Composite Data Types and cursors Utilizing Oracle-Supplied Packages in Application Development Including Exception Handling Manage Dependencies and Large Objects

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Introduction to PL/SQL
  • What is PL/SQL
  • PL/SQL Environment
  • Benefits of PL/SQL
  • Overview of the Types of PL/SQL blocks
  • Create and Execute a Simple Anonymous Block
  • Generate Output from a PL/SQL Block
  • iSQL*Plus as PL/SQL Programming Environment
Declaring PL/SQL Identifiers
  • Identify the Different Types of Identifiers in a PL/SQL subprogram
  • Use the Declarative Section to Define Identifiers
  • List the Uses for Variables
  • Store Data in Variables
  • Declare PL/SQL Variables
Writing Executable Statements
  • Describe Basic Block Syntax Guidelines
  • Use Literals in PL/SQL
  • Customize Identifier Assignments with SQL Functions
  • Use Nested Blocks as Statements
  • Reference an Identifier Value in a Nested Block
  • Qualify an Identifier with a Label
  • Use Operators in PL/SQL
  • Use Proper PL/SQL Block Syntax and Guidelines
Interacting with the Oracle Server
  • Identify the SQL Statements You Can Use in PL/SQL
  • Include SELECT Statements in PL/SQL
  • Retrieve Data in PL/SQL with the SELECT Statement
  • Avoid Errors by Using Naming Conventions When Using Retrieval and
  • DML Statements
  • Manipulate Data in the Server Using PL/SQL
  • The SQL Cursor concept
  • Use SQL Cursor Attributes to Obtain Feedback on DML
  • Save and Discard Transactions
Writing Control Structures
  • Control PL/SQL Flow of Execution
  • Conditional processing Using IF Statements
  • Conditional Processing CASE Statements
  • Handle Nulls to Avoid Common Mistakes
  • Build Boolean Conditions with Logical Operators
  • Use Iterative Control with Looping Statements
Working with Composite Data Types
  • Learn the Composite Data Types of PL/SQL Records and Tables
  • Use PL/SQL Records to Hold Multiple Values of Different Types
  • Inserting and Updating with PL/SQL Records
  • Use INDEX BY Tables to Hold Multiple Values of the Same Data Type
Using Explicit Cursors
  • Cursor FOR Loops Using Sub-queries
  • Increase the Flexibility of Cursors By Using Parameters
  • Use the FOR UPDATE Clause to Lock Rows
  • Use the WHERE CURRENT Clause to Reference the Current Row
  • Use Explicit Cursors to Process Rows
  • Explicit Cursor Attributes
  • Cursors and Records
Handling Exceptions
  • Handling Exceptions with PL/SQL
  • Predefined Exceptions
  • Trapping Non-predefined Oracle Server Errors
  • Functions that Return Information on Encountered Exceptions
  • Trapping User-Defined Exceptions
  • Propagate Exceptions
  • Use The RAISE_APPLICATION_ERROR Procedure To Report Errors
  • To Applications
  • Creating Stored Procedures
  • Describe the block structure for PL/SQL stored procedures
  • Invoke a stored procedure/function from different tools
  • Call a stored procedure with host variables from iSQL*Plus, Forms, Java, C, etc
  • Invoke a stored procedure from an anonymous block or another stored procedure
  • Identify the development steps for creating a stored procedure
  • Use the SHOW ERRORS command
  • View source code in the USER_SOURCE dictionary view
Creating Stored Functions
  • Describe stored functions
  • Identify the steps to create a stored function
  • Execute a stored function
  • Identify the advantages of using stored functions in SQL statements
  • Identify the restrictions of calling functions from SQL statements
  • Remove a function
Creating Packages
  • List the advantages of packages
  • Describe packages
  • Show the components of a package Diagram the visibility of constructs within a package
  • Develop a package
  • Create the package specification
  • Declare public constructs
  • Create the package body
Using More Package Concepts
  • List the benefits of overloading
  • Show overloading example
  • Use forward declarations in packages
  • Create a one-time only procedure (package code initialization)
  • List the restrictions on package functions used in SQL
  • Encapsulate code in a package demonstration
  • Invoke a user-defined package function from a SQL statement
  • Utilize the persistent state of package variables
Utilizing Oracle Supplied Packages in Application Development
  • List the various uses for the Oracle supplied packages
  • Reuse pre-packaged code to complete various tasks from developer to DBA purposes
  • Use the DESCRIBE command to view the package specifications and overloading
  • Explain how DBMS_OUTPUT works (in conjunction with SET SERVEROUPUT ON)
  • Interact with operating system files with UTL_MAIL
  • Describe file processing with UTL_FILE
  • Review UTL_FILE routines and exceptions
  • Use UTL_FILE to generate a report to a file
Dynamic SQL and Metadata
  • Describe using native dynamic SQL
  • List the execution flow of SQL
  • Show the syntax for the EXECUTE IMMEDIATE statement for native dynamic SQL
  • Create a procedure to generate native dynamic SQL using EXECUTE
  • IMMEDIATE to delete rows from a table
  • Describe the DBMS_SQL package
  • Provide an example of DBMS_SQL
  • List the advantages of using Native Dynamic SQL Over the DBMS_SQL package
Design Considerations for PL/SQL Code
  • Standardize constants with a constant package
  • Standardize exceptions with an exception handling package
  • Introduce local sub-programs
  • Use local sub-programs
  • Track run time errors with an exception package
  • Describe the NOCOPY compiler hint
  • Use the NOCOPY compiler hint
  • Explain the effects of NOCOPY
Managing Dependencies
  • Define dependent and referenced objects
  • Diagram dependencies with code, views, procedures, and tables
  • Manage local dependencies between a procedure, view, and a table
  • Analyze a scenario of local dependencies
  • Display direct dependencies using the USER_DEPENDENCIES view
  • Run the UTL_DTREE.SQL script to create objects that enable you to view direct and indirect dependencies
  • Predict the effects of changes on dependent objects
Manipulating Large Objects
  • Describe a LOB object
  • Diagram the anatomy of a LOB
  • Manage and list the features on internal LOBs
  • Describe, manage, and secure BFILEs
  • Create and use the DIRECTORY object to access and use BFILEs
  • Prepare BFILEs for usage
  • Use the BFILENAME function to load BFILEs
  • Describe the DBMS_LOB package
Creating Triggers
  • Describe the different types of triggers and how they execute
  • List the benefits and guidelines of using database triggers
  • Show how triggers are executed with a basic database trigger example
  • Show syntax and create DML triggers, and list the DML trigger components
  • Explain the firing sequence of triggers
  • Create a DML statement and row level triggers
  • Use the OLD and NEW qualifiers to reference column values
  • Use conditional predicates with triggers
Applications for Triggers
  • Create triggers for DDL events of CREATE, ALTER, and DROP
  • Create triggers for system events of SERVERERROR, STARTUP, SHUTDOWN, LOGON and LOGOFF
  • Define a mutating table
  • Describe business application scenarios for implementing with triggers
  • Describe the privileges required to manage triggers
Understanding and Influencing the PL/SQL Compiler
  • List the features of native compilation
  • Describe the features of the PL/SQL compiler in Oracle Database 10g
  • Identify the 3 parameters used to influence compilation (PLSQL_CODE_TYPE, PLSQL_DEBUG, PLSQL_OPTIMIZE_LEVEL)
  • Show how to set the parameters
  • Describe the dictionary view used to see how code is compiled (USER_PLSQL_OBJECTS)
  • Change the parameter settings, recompile code, and view the results
  • Describe the compiler warning infrastructure in Oracle Database 10g
  • List the steps used in setting compiler warning levels

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