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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

The SQL COUNT() Function The SQL COUNT() function in SQL is used to determine how many rows or records are present in a given column … Read more

The SQL MIN() and MAX() Functions The SQL MIN() and MAX() functions in SQL are used to extract the minimum and maximum values from a … Read more

The SQL Null Values What is a NULL Value in sql?In a database column, SQL NULL values indicate that there is no value or that … Read more

The SQL SELECT TOP Clause The SQL SELECT TOP clause is used to limit the number of rows returned by a query. It allows you … Read more

The SQL NOT Operator The SQL NOT operator is used to reverse the outcome of a condition in SQL. It’s used to filter out rows … Read more

The SQL AND Operator The SQL AND operator is used to combine multiple conditions or records in a SQL query to retrieve rows from a … Read more