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Oracle PL-SQL Programming
Oracle PL/SQL Programming refers to an extension of SQL programming language which is used to design continuous processing of SQL statements used to enhance security, robustness of the database. The Oracle PL/ SQL Programming online course intention is to make the participant to write code in a procedural format.
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Oracle PL-SQL training and oracle certification can help boost your career and is a hot skill in the job market currently.
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Course Objectives:
The Oracle PL/SQL Programming training is intended for the individuals who seek to implement their knowledge, skills and expand their career as Oracle PL/SQL developer. The dedicated mentors make sure the learners to cover all topics under Oracle PL/SQL Programming curriculum which will be useful for their career growth. Uplatz offers Oracle Pl/SQL training to become a skilled Oracle PL/SQL developer job.
Manage dependencies between PL/SQL subprogramsUse PL/SQL programming constructs and conditionally control code flow (loops, control structures, and explicit cursors)
Create stored procedures and functions
Use conditional compilation to customize the functionality in a PL/SQL application without removing any source code
Use the Oracle supplied PL/SQL packages to generate screen output, file output and mail output
Write dynamic SQL for more coding flexibility
Create overloaded package subprograms for more flexibility
Create triggers to solve business challenges
Create and debug stored procedures and functions
Describe the features and syntax of PL/SQL
Design PL/SQL anonymous blocks that execute efficiently
Design PL/SQL packages to group related constructs
Handle runtime errors
To learn Oracle PL-SQL programming course from experts, and to get guidance on how to appear for formal oracle certification exams, please write to us at info@uplatz.com or call us at +44 7836 212635
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Course Description
Oracle PL/SQL course program will let the participants gain complete proficiency to access the common database language.
The Oracle PL/SQL course is ideally developed for programmers who can make use of the common database language.
In the Oracle Pl/SQL course, Uplatz provides an in-depth training for the participants or learners to make them understand the experience of developing core skills to gear up with the database programming solution.
The Oracle PL/SQL programming technology is to offer important aspects of block structure, triggers, packages and other features.
With the help of Oracle PL/SQL Programming online course, the learners can:
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Maintain source code sets and author necessary technical documentation.
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Handle DBA’s in database maintenance.
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Develop, design, test and run database programs through oracle and other tools.
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Hands-on experience using oracle Pl/SQL.
Uplatz provides an in-depth training to the learners to accelerate their knowledge and skill set required for Oracle Pl/SQL developer.
Target Audience
The Oracle Pl/SQL Programming course is intended for the below mentioned target audience, still if you are a newbie and want to make a career as an Oracle PL/SQL developers then the Oracle PL/SQL programming course is the best option you can choose.
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Developers
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Programmers
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End user
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Oracle PL-SQL Programming
Introduction
- Course Objectives
- Course Agenda
- Describe the Human Resources (HR) Schema
- PL/SQL development environments available in this course
- Introduction to SQL Developer
Working with Oracle Cloud Exadata Express Cloud Service
- Introduction to Oracle Database Exadata Express Cloud Service
- Accessing Cloud Database using SQL Workshop
- Connecting to Exadata Express using Database Clients
Introduction to PL/SQL
- Overview of PL/SQL
- Identify the benefits of PL/SQL Subprograms
- Overview of the types of PL/SQL blocks
- Create a Simple Anonymous Block
- How to generate output from a PL/SQL Block?
Declare PL/SQL Variables
- List the different Types of Identifiers in a PL/SQL subprogram
- Usage of the Declarative Section to Define Identifiers
- Use variables to store data
- Identify Scalar Data Types
- The %TYPE Attribute
- What are Bind Variables?
- Sequences in PL/SQL Expressions
Write Anonymous PL/SQL Blocks
- Describe Basic PL/SQL Block Syntax Guidelines
- Learn to Comment the Code
- Deployment of SQL Functions in PL/SQL
- How to convert Data Types?
- Describe Nested Blocks
- Identify the Operators in PL/SQL
SQL Statements in a PL/SQL block
- Invoke SELECT Statements in PL/SQL
- Retrieve Data in PL/SQL
- SQL Cursor concept
- Avoid Errors by using Naming Conventions when using Retrieval and DML Statements
- Data Manipulation in the Server using PL/SQL
- Understand the SQL Cursor concept
- Use SQL Cursor Attributes to Obtain Feedback on DML
- Save and Discard Transactions
Control Structures
- Conditional processing using IF Statements
- Conditional processing using CASE Statements
- Describe simple Loop Statement
- Describe While Loop Statement
- Describe For Loop Statement
- Use the Continue Statement
Composite Data Types
- Use PL/SQL Records
- The %ROWTYPE Attribute
- Insert and Update with PL/SQL Records
- INDEX BY Tables
- Examine INDEX BY Table Methods
- Use INDEX BY Table of Records
Explicit Cursors
- What are Explicit Cursors?
- Declare the Cursor
- Open the Cursor
- Fetch data from the Cursor
- Close the Cursor
- Cursor FOR loop
- The %NOTFOUND and %ROWCOUNT Attributes
- Describe the FOR UPDATE Clause and WHERE CURRENT Clause
Exception Handling
- Understand Exceptions
- Handle Exceptions with PL/SQL
- Trap Predefined Oracle Server Errors
- Trap Non-Predefined Oracle Server Errors
- Trap User-Defined Exceptions
- Propagate Exceptions
- RAISE_APPLICATION_ERROR Procedure
Stored Procedures
- Create a Modularized and Layered Subprogram Design
- Modularize Development With PL/SQL Blocks
- Understand the PL/SQL Execution Environment
- List the benefits of using PL/SQL Subprograms
- List the differences between Anonymous Blocks and Subprograms
- Create, Call, and Remove Stored Procedures
- Implement Procedures Parameters and Parameters Modes
- View Procedure Information
Stored Functions
- Create, Call, and Remove a Stored Function
- Identify the advantages of using Stored Functions
- Identify the steps to create a stored function
- Invoke User-Defined Functions in SQL Statements
- Restrictions when calling Functions
- Control side effects when calling Functions
- View Functions Information
Debugging Subprograms
- How to debug Functions and Procedures?
- Debugging through SQL Developer
Packages
- Listing the advantages of Packages
- Describe Packages
- What are the components of a Package?
- Develop a Package
- How to enable visibility of a Packages Components?
- Create the Package Specification and Body using the SQL CREATE Statement and SQL Developer
- Invoke the Package Constructs
- View the PL/SQL Source Code using the Data Dictionary
Deploying Packages
- Overloading Subprograms in PL/SQL
- Use the STANDARD Package
- Use Forward Declarations to solve Illegal Procedure Reference
- Implement Package Functions in SQL and Restrictions
- Persistent State of Packages
- Persistent State of a Package Cursor
- Control side effects of PL/SQL Subprograms
- Invoke PL/SQL Tables of Records in Packages
Implement Oracle-Supplied Packages in Application Development
- What are Oracle-Supplied Packages?
- Examples of some of the Oracle-Supplied Packages
- How does the DBMS_OUTPUT Package work?
- Use the UTL_FILE Package to Interact with Operating System Files
- Invoke the UTL_MAIL Package
- Write UTL_MAIL Subprograms
Dynamic SQL
- The Execution Flow of SQL
- What is Dynamic SQL?
- Declare Cursor Variables
- Dynamically Executing a PL/SQL Block
- Configure Native Dynamic SQL to Compile PL/SQL Code
- How to invoke DBMS_SQL Package?
- Implement DBMS_SQL with a Parameterized DML Statement
- Dynamic SQL Functional Completeness
Design Considerations for PL/SQL Code
- Standardize Constants and Exceptions
- Understand Local Subprograms
- Write Autonomous Transactions
- Implement the NOCOPY Compiler Hint
- Invoke the PARALLEL_ENABLE Hint
- The Cross-Session PL/SQL Function Result Cache
- The DETERMINISTIC Clause with Functions
- Usage of Bulk Binding to Improve Performance
Triggers
- Describe Triggers
- Identify the Trigger Event Types and Body
- Business Application Scenarios for Implementing Triggers
- Create DML Triggers using the CREATE TRIGGER Statement and SQL Developer
- Identify the Trigger Event Types, Body, and Firing (Timing)
- Differences between Statement Level Triggers and Row Level Triggers
- Create Instead of and Disabled Triggers
- How to Manage, Test and Remove Triggers?
Creating Compound, DDL, and Event Database Triggers
- What are Compound Triggers?
- Identify the Timing-Point Sections of a Table Compound Trigger
- Understand the Compound Trigger Structure for Tables and Views
- Implement a Compound Trigger to Resolve the Mutating Table Error
- Comparison of Database Triggers to Stored Procedures
- Create Triggers on DDL Statements
- Create Database-Event and System-Events Triggers
- System Privileges Required to Manage Triggers
PL/SQL Compiler
- What is the PL/SQL Compiler?
- Describe the Initialization Parameters for PL/SQL Compilation
- List the new PL/SQL Compile Time Warnings
- Overview of PL/SQL Compile Time Warnings for Subprograms
- List the benefits of Compiler Warnings
- List the PL/SQL Compile Time Warning Messages Categories
- Setting the Warning Messages Levels: Using SQL Developer, PLSQL_WARNINGS Initialization Parameter, and the DBMS_WARNING Package Subprograms
- View Compiler Warnings: Using SQL Developer, SQL*Plus, or the Data Dictionary Views
Manage Dependencies
- Overview of Schema Object Dependencies
- Query Direct Object Dependencies using the USER_DEPENDENCIES View
- Query an Objects Status
- Invalidation of Dependent Objects
- Display the Direct and Indirect Dependencies
- Fine-Grained Dependency Management in Oracle Database 12c
- Understand Remote Dependencies
- Recompile a PL/SQL Program Unit
The Oracle certified PL/SQL developer certification course with the help of expert professionals training is recognized across the globe. Because of the increased adoption of the SQL programming concepts in various companies the participants are able to find the job opportunity easily. The leading companies hire Oracle HCM PL/SQL Developer considering the mastering of coding skills in SQL. The Oracle PL/SQL developer can pursue a wide range of career paths.
The following are the job titles:
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Pl/SQL Developer
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Oracle Database Developer
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SQL Programmer
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SQL server developer
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The Oracle PL/SQL developer draws an average salary of $131,878 per year depending on the knowledge and hands-on experience. The Oracle PL/SQL developer job roles are in high demand and make a rewarding career.
Interview Questions
1. Define PL SQL?
PL SQL is referred to procedural language which has interactive SQL, as well as procedural programming language builds like conditional branching and iteration.
2. Mention a difference between % ROWTYPE and TYPE RECORD.
% ROWTYPE is used whenever a query returns an entire row of a table or view. TYPE RECORD, is used when a query returns column of different tables or views.
3. Explain purpose of cursor?
Cursor is referred to named private area in SQL from which information can be accessed. They are needed to process each row individually for queries which retrieves multiple rows.
4. Mention code of a cursor for loop?
Cursor declares %ROWTYPE as loop index internally. It then opens a cursor, fetches rows of values from the active set in record fields and shuts when all the records are processed.
5. Explain the usage of database trigger?
A PL/SQL program unit linked with a particular database table is called a database trigger.
6. Mention the uses of database trigger?
The uses are:
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Audit data changes.
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Log events transparency.
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Implement complex business rules.
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Maintain replica tables
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Derive column values
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Implement Complex security authorizations
7. Mention the two types of exceptions?
Error handling section of PL/SQL block is called Exception. They have two types : user_defined and predefined.
8. Mention few predefined exceptions?
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DUP_VAL_ON_INDEX
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ZERO_DIVIDE
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NO_DATA_FOUND
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TOO_MANY_ROWS
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CURSOR_ALREADY_OPEN
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INVALID_NUMBER
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INVALID_CURSOR
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PROGRAM_ERROR
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TIMEOUT _ON_RESOURCE
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STORAGE_ERROR
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LOGON_DENIED
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VALUE_ERROR
etc.
9. Brief Raise_application_error?
It is a procedure of package DBMS_STANDARD that enables issuing of user_defined error messages from database trigger.
10. Brief how functions and procedures are called in a PL SQL block?
Function is referred as a part of an expression.
total:=calculate_sal('b644')
Procedure is referred as a statement in PL/SQL.
calculate_bonus('b644');
11.Mention two virtual tables available at the time of database trigger execution?
Table columns are known as THEN.column_name and NOW.column_name.
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For INSERT related triggers, NOW.column_name values are available.
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For DELETE related triggers, THEN.column_name values are available.
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For UPDATE related triggers, both Table columns are available.
12. Mention the rules to be applied to NULLs while doing comparisons?
NULL can never be TRUE or FALSE
NULL cannot be equal or unequal to other values
13. How is PL SQL compiled?
Compilation process includes syntax check, bind and p-code generation processes.
Syntax checking analyses the PL SQL codes for compilation errors. When all errors are resolved, a storage address is assigned to the variables that hold data. It is known as Binding. P-code is a set of instructions for the PL SQL engine. P-code is stored in the database for named blocks and is used the recurrently whenever it is executed.
