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MySQL Query

45 posts

How to Strip Time Component From Datetime in MySQL?

Last Updated: 19 March 2024

MySQL is a very popular open-source and free database server that is ideal for small and large applications and is a relational database management system where SQL (Struc...read more

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How to Escape Apostrophe in MySQL?

Last Updated: 19 March 2024

Single quotes are used in MySQL to enclose and identify text data. When dealing with text data that contains an apostrophe, it is important to use correct escaping to avoi...read more

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How to Call a Stored Procedure Using Select Statement in MySQL?

Last Updated: 19 March 2024

Stored procedures in MySQL are powerful tools for encapsulating SQL logic and enabling reusability. However, executing stored procedures via SELECT statements can provide ...read more

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How to Avoid Dividing by Zero in MySQL

Last Updated: 24 June 2024

MySQL is an open-source relational database management system in short RDBMS. We use it to store, retrieve, and manipulate data very efficiently. In MySQL "Divide by zero...read more

How to Select Rows from a Table that are Not in Another Table?

Last Updated: 12 March 2024

In MySQL, the ability to select rows from one table that do not exist in another is crucial for comparing and managing data across multiple tables. This article explores t...read more

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How to Restrict Results to Top N Rows per Group in MySQL

Last Updated: 12 March 2024

When working with MySQL databases, the need to limit results to the top N rows per group is a common requirement. This is particularly useful in scenarios where you aim to...read more

How to Get Last Inserted ID from MySQL?

Last Updated: 24 April 2025

In the world of Java programming and MySQL database management systems, you might be querying your MySQL database using a JDBC connection. In this article, we will look at...read more

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How to Fix Access Denied for User 'root'@'localhost' in MySQL

Last Updated: 08 April 2024

In MySQL, encountering the "Access Denied for User 'root'@'localhost' " error typically occurs when there is an issue with the user privileges or incorrect credentials. Th...read more

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How to Update Table Rows Using Subquery in MySQL

Last Updated: 26 June 2024

Updating table rows using subqueries in MySQL enables precise modifications based on specific conditions or values from other tables. This technique leverages subqueries w...read more

How to Get Column Names in MySQL?

Last Updated: 08 April 2024

To get column names in MySQL use techniques such as the DESCRIBE statement, INFORMATION_SCHEMA.COLUMNS, and SHOW COLUMNS FROM commands.Here will cover these techniques, wi...read more

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How to Return Pivot Table Output in MySQL

Last Updated: 17 June 2024

Pivoting a table in MySQL involves transforming rows into columns, which can be particularly useful for data analysis and reporting. While MySQL does not have a native PIV...read more

How To Update Multiple Columns in MySQL?

Last Updated: 08 April 2024

To update multiple columns in MySQL we can use the SET clause in the UPDATE statement. SET clause allows users to update values of multiple columns at a time.In this artic...read more

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Create Unique Constraint with NULL Columns in MySQL

Last Updated: 18 September 2024

Unique constraint in MySQL ensures that each value in the column is unique. If a column contains a NULL value, it is also treated as a unique value, but if a column contai...read more

How to Split a Delimited String to Access Individual Items in MySQL?

Last Updated: 08 April 2024

In MySQL, it's common to encounter scenarios where we need to split a delimited string into individual items to process or manipulate them separately. This can be achieved...read more

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How to Enable MySQL Query Log?

Last Updated: 01 July 2024

MySQL query logging is a powerful feature that allows administrators to track and log all queries executed on the MySQL server. This is particularly useful for debugging, ...read more