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Introduction to Writing SQL Queries
Description
Introduction to Writing SQL Queries
Welcome to “Introduction to SQL Query Writing,” a definitive course designed for data professionals, analysts, developers, and architects looking to master SQL for database management and data analysis. In our increasingly data-driven world, the ability to efficiently manage and extract meaningful insights from databases is crucial. This course offers you the foundational knowledge and practical skills in SQL, the cornerstone of all relational database operations, to optimize, manage, and secure databases effectively.
Dive deep into the essentials of SQL programming as you learn to develop, optimize, and execute sophisticated queries.
With a curriculum that covers various platforms, including Oracle and Microsoft SQL Server, this course adheres to the ANSI/ISO SQL standards, ensuring comprehensive training in both theoretical and practical aspects of SQL. By understanding the intricacies of SQL, you will be equipped to handle critical database management tasks, from generating reports to ensuring data integrity and security.
Join us to unlock the full potential of SQL through interactive lessons and hands-on practice.
Whether you’re aiming to enhance your current skills or embark on a new career in database management, this course will set you on the path to becoming a proficient SQL practitioner, capable of tackling complex data challenges in any organizational context.
Introduction to Writing SQL Queries Course Objectives
- Master SQL Fundamentals: Understand the core principles of SQL and its applications in database management.
- Develop Query Skills: Learn to construct and optimize queries to extract and manipulate data efficiently across different database systems.
- Enhance Data Analysis Techniques: Gain the ability to perform complex data analysis, ensuring accurate reporting and decision-making.
- Practice Real-World Applications: Apply SQL knowledge in real-world scenarios, enhancing skills in database security, report generation, and performance tuning.
- Understand Platform-Specific SQL: Become familiar with the nuances of SQL implementation across various platforms like Oracle and Microsoft SQL Server.
Prerequisites
- To make the most of this course, it’s recommended that attendees have prior experience in scripting or programming languages.
Audience
This introductory-level course is suitable for individuals who are:
- Developing applications using relational databases
- Using SQL to extract and analyze data from databases
- Interested in harnessing the full power of SQL queries
Introduction to Writing SQL Queries Outline
Introduction: Quick Tools Review
- Introduction to SQL and its development environments
- Using SQL*PLUS
- Using SQL Developer
Using the SQL SELECT Statement
- Capabilities of the SELECT statement
- Arithmetic expressions and NULL values in the SELECT statement
- Column aliases
- Use of concatenation operator, literal character strings, alternative quote operator, and the DISTINCT keyword
- Use of the DESCRIBE command
Restricting and Sorting Data
- Limiting the Rows
- Rules of precedence for operators in an expression
- Substitution Variables
- Using the DEFINE and VERIFY command
Single-Row Functions
- Describe the differences between single-row and multiple-row functions
- Manipulate strings with character functions in the SELECT and WHERE clauses
- Manipulate numbers with the ROUND, TRUNC, and MOD functions
- Perform arithmetic with date data
- Manipulate dates with the date functions
Conversion Functions and Expressions
- Describe implicit and explicit data type conversion
- Use the TO_CHAR, TO_NUMBER, and TO_DATE conversion functions
- Nest multiple functions
- Apply the NVL, NULLIF, and COALESCE functions to the data
- Decode/Case Statements
Group Functions and Aggregated Data
- Group Functions
- Creating Groups of Data
- Having Clause
- Cube/Rollup Clause
SQL Joins and Join Types
- Introduction to JOINS
- Types of Joins
- Natural join
- Self-join
- Nonequijoins
- OUTER join
Using Subqueries
- Introduction to Subqueries
- Single-Row Subqueries
- Multiple Row Subqueries
Using the SET Operators
- Set Operators
- UNION and UNION ALL operator
- INTERSECT operator
- MINUS operator
- Matching the SELECT statements
DML – Data Manipulation Language statements
- Data Manipulation Language
- Database Transactions
- Insert
- Update
- Delete
- Merge
Data Definition Language (DDL)
- Data Definition Language
- Create
- Alter
- Drop
Data Dictionary Views
- Introduction to Data Dictionary
- Describe the Data Dictionary Structure
- Using the Data Dictionary views
- Querying the Data Dictionary Views
- Dynamic Performance Views
Creating Sequences, Synonyms, Indexes
- Creating sequences
- Creating synonyms
- Creating indexes
- Index Types
Creating Views
- Creating Views
- Altering Views
- Replacing Views
Managing Schema Objects
- Managing constraints
- Creating and using temporary tables
- Creating and using external tables
Retrieving Data Using Subqueries
- Retrieving Data by Using a Subquery as a Source
- Working with Multiple-Column subqueries
- Correlated Subqueries
- Non-Correlated Subqueries
- Using Subqueries to Manipulate Data
- Using the Check Option
- Subqueries in Updates and Deletes
- In-line Views
DCL -Data Control Language
- System privileges
- Creating a role
- Object privileges
- Revoking object privileges
Manipulating Data
- Overview of the Explicit Default Feature
- Using multitable INSERTs
- Using the MERGE statement
- Tracking Changes in Data
$1995.00
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3 Days Course |