Author: sqltutorial_wmkd8s

The SQL CREATE FUNCTION statement is used to define a new user-defined function (UDF) in a database. A function in SQL is a set of SQL statements that perform a specific task and return a single value. Functions help in encapsulating a set of logic that can be reused in various parts of SQL queries,…(Continue Reading)

In SQL, the ALTER PROCEDURE statement is used to modify an existing stored procedure. A stored procedure is a precompiled collection of one or more SQL statements that can be executed as a single unit. Modifying a stored procedure can be necessary to update its functionality, improve performance, or accommodate changes in the database schema.…(Continue Reading)

A stored procedure in SQL is a precompiled collection of one or more SQL statements that are stored and can be executed as a single unit. It is typically used to encapsulate a set of operations or business logic that can be reused across different parts of an application or by multiple users. Stored procedures…(Continue Reading)

In SQL, a stored procedure is a precompiled collection of one or more SQL statements that perform a specific task. The CREATE PROCEDURE statement is used to define and create stored procedures in a database. Here’s an overview of the SQL CREATE PROCEDURE syntax and its key components: Syntax CREATE PROCEDURE procedure_name [parameter1 datatype1, parameter2…(Continue Reading)

In SQL, a trigger is a set of instructions that are automatically executed or fired in response to certain events on a particular table or view. The ALTER TRIGGER statement is used to modify an existing trigger in a database. Triggers are commonly used to enforce business rules, maintain referential integrity, or perform other automated…(Continue Reading)

In SQL, the ALTER VIEW statement is used to modify an existing view in a database. A view in SQL is a virtual table that is based on the result of a SELECT query. It does not store the data itself but provides a way to represent the data from one or more tables in…(Continue Reading)

The SET TRANSACTION statement in SQL is used to configure properties for a transaction. Transactions in a relational database management system (RDBMS) ensure the consistency and integrity of the data by allowing a series of SQL statements to be treated as a single unit of work. The SET TRANSACTION statement provides a way to customize…(Continue Reading)

In SQL, a SAVEPOINT is a mechanism that allows you to create a point within a transaction to which you can later roll back. This feature is particularly useful when you want to implement a partial rollback in case of errors or other exceptional conditions within a transaction. Why Use SAVEPOINT? Nested Transactions SAVEPOINT allows…(Continue Reading)

The BEGIN TRANSACTION statement is a fundamental part of the SQL used to manage transactions within a relational database. A transaction is a sequence of one or more SQL statements that are executed as a single unit of work. The BEGIN TRANSACTION statement marks the beginning of a transaction, and it is typically followed by…(Continue Reading)

SQL transactions are a crucial aspect of database management systems (DBMS) that ensure the integrity, consistency, and reliability of data. A transaction in SQL represents a sequence of one or more SQL statements that are executed as a single unit of work. The fundamental properties of a transaction, often referred to as ACID properties, are…(Continue Reading)