SQL FAQ

Update statement  The UPDATE statement in SQL is a powerful command that allows you to make changes to existing records in a database table . Imagine you have a table representin…

Use WHERE and HAVING clause together Yes , you can use both WHERE and HAVING in the same SQL query. Both clauses are used to filter data, but they operate at different stages of …

In this post we will learn when and where o use where clause in SQL. The SQL WHERE clause is used to filter and retrieve specific rows from a database table based on certain cond…

Where do we use SELECT DISTINCT COMMAND? The " SELECT DISTINCT " command is used in SQL (Structured Query Language) to retrieve unique values from a specific column or…

SQL SELECT STATEMENT  The SELECT statement in SQL is used to retrieve data from a database. It allows you to specify the columns you want to retrieve and apply conditions to fil…

In SQL, the ALTER statement is used to modify existing database objects such as tables, columns, constraints, or indexes. The specific syntax and options may vary slightly depe…