SQL Commands

SQL Constraints

What are the SQL Constraints? SQL constraints are rules that limit the types of data that can be inserted or…

2 years ago

SQL: AND & OR operators

The AND and OR operators are used in SQL to filter data and produce precise results based on conditions. Multiple…

2 years ago

SQL: DISTINCT keyword

What is the SQL DISTINCT keyword? The SQL DISTINCT keyword is used in conjunction with the SELECT statement to remove…

2 years ago

SQL: HAVING Clause

The HAVING clause in SQL Server includes one or more conditions that must be TRUE for groups of records. It's…

2 years ago

SQL: Group By Clause

The SQL Group By statement is used to organize similar data into groups. The data is further organized using an…

2 years ago

SQL: ORDER BY Clause

What is the ORDER BY Clause? In the SELECT query, the ORDER BY clause can be used to sort the…

2 years ago

SQL: LIKE clause

In SQL to filter data based on a specific pattern, the LIKE clause is used in the WHERE condition. It…

2 years ago

SQL: WHERE clause

When retrieving data from a single table or by joining data from multiple tables, a condition is specified using the…

2 years ago

SQL: DELETE Query

What is Delete Query? In SQL, the DELETE Query removes existing records from a table. Depending on the condition specified…

2 years ago

SQL: UPDATE Query

What is an UPDATE QUERY? The SQL UPDATE statement is used to modify the data in tables' records. A condition…

2 years ago