SQL

SQL

SQL Comments: The Complete Guide

Adding Comments in SQL queries is a thoughtful idea because it is used to explain the sections of SQL statements or prevent the execution...
Ankit Lathiya -
SQL

SQL Group By: The Complete Guide

GROUP BY in SQL is also used with the aggregate functions (COUNT, MAX, MIN, SUM, AVG) to group the result by one or more...
Krunal -
SQL

SQL Having Clause: The Complete Guide

The HAVING clause was added to SQL because the WHERE keyword could not be used with aggregate functions. The HAVING applies to the summarized...
Ankit Lathiya -
SQL

SQL UNION Operator: The Complete Guide

SQL UNION operator combines a result set of two or more SELECT statements.  SQL UNION A UNION operator in SQL combines a result-set of two or...
Ankit Lathiya -
SQL

SQL JOIN: The Complete Guide

SQL is the special-purpose programming language for managing information in the relational database management system (RDBMS). The word relational is key; it specifies that...
Ankit Lathiya -
SQL

SQL SELF JOIN: The Complete Guide

The self-join allows you to join the table to itself. It helps query the hierarchical data or compare rows within the same table. SQL Self...
Ankit Lathiya -
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