SQL

The SQL HAVING Clause The SQL HAVING clause and the WHERE clause are similar. Both are used to filter table rows according to predetermined criteria. … Read more

The SQL GROUP BY Statement The SQL GROUP BY statement is used to group the rows that have the same values in one or more … Read more

The SQL Joins The joins are used to combine rows from two or more database tables when there is a linked column between them in … Read more

The SQL Aliases The SQL Aliases are used to provide alternative names for columns or tables in a query’s result set in SQL, making the … Read more

The SQL BETWEEN Operator The SQL BETWEEN operator is used to filter rows based on a range of values within a specified column. It allows … Read more

The SQL IN Operator Several values can be specified for a column in a WHERE clause using the SQL IN operator. You can use it … Read more

The SQL Wildcards The sql wildcards are special characters used in conjunction with the LIKE operator to perform pattern matching in text searches. Wildcards allow … Read more

The SQL LIKE Operator The SQL LIKE operator is used to look for a certain or specified pattern in a column. The LIKE operator allows … Read more

The SQL AVG() Function The SQL AVG() function is used to calculate the average or mean value of a set of numeric values in a … Read more

The SQL SUM() Function What is the SUM() function in sql? The SQL SUM() function is an aggregate function used to calculate the sum of … Read more