SQL Select Distinct
The SELECT DISTINCT statement in SQL is used to retrieve unique values from a column or set of columns in […]
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SQL Select
The SELECT statement in SQL is used to retrieve data from a database. It is one of the most fundamental
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Data Manipulation and Transactions
Objective: Learn how to manipulate data and work with transactions in SQL. 1. Inserting Multiple Rows at Once When you
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Advanced SQL Concepts
Objective: Explore advanced SQL concepts to write more complex queries. 1. Nested Queries and Subqueries: In this example, the subquery
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SQL Joins and Relationships
Objective: Learn how to work with multiple tables using SQL joins. Introduction to Primary and Foreign Keys Primary keys and
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Data Retrieval with SQL
Objective: Understand how to retrieve and filter data using SQL queries. In this lesson, we’ll focus on how to use
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Basic SQL Commands
Objective: Learn the fundamental SQL commands. In this lesson, we will cover the essential SQL commands that form the foundation
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Introduction to Databases and SQL
Objective: Understand what databases are and the basics of SQL. What is a Database? A database is a systematized collection
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