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SQL Lesson

Understanding Transaction Control Statements (BEGIN TRANSACTION, COMMIT, ROLLBACK)

Transaction control statements are used to manage and control the execution of database transactions. A transaction is a logical unit of work that consists of one or more SQL statements. Transaction control statements allow you to ensure data integrity and consistency by defining a set of operations that should be treated as a single atomic

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Performing Bulk Updates and Deletes Using the UPDATE and DELETE Statements with JOINs

In SQL, you can perform bulk updates and deletes on multiple rows simultaneously by using the UPDATE and DELETE statements in conjunction with joins. This allows you to update or delete data based on relationships between tables. Bulk Updates with JOINs To perform bulk updates using joins, you can use the UPDATE statement along with

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Using the INSERT INTO SELECT Statement to Insert Data from One Table into Another

INSERT INTO SELECT statement allows you to insert data from one table into another table. This statement is useful when you want to copy data from an existing table or retrieve data from a complex query and insert it into another table. Basic Syntax INSERT INTO target_table (column1, column2, …) SELECT column1, column2, … FROM

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