(SQL tutorials for Business Analyst & Beginners) In this end-to-end example, you will learn – SQL Tutorials for Business Analyst: SQL | UNIONS CLAUSE. The SQL UNION clause/operator is used to combine the results of two or more SELECT statements without returning any duplicate rows. To use this UNION clause, each SELECT statement must …
(SQL tutorials for Business Analyst & Beginners) In this end-to-end example, you will learn – SQL Tutorials for Business Analyst: SQL | CARTESIAN or CROSS JOINS. The CARTESIAN JOIN or CROSS JOIN returns the Cartesian product of the sets of records from two or more joined tables. Thus, it equates to an inner join …
(SQL tutorials for Business Analyst & Beginners) In this end-to-end example, you will learn – SQL Tutorials for Business Analyst: SQL | SELF JOINS. The SQL SELF JOIN is used to join a table to itself as if the table were two tables; temporarily renaming at least one table in the SQL statement. Syntax The basic …
(SQL tutorials for Business Analyst & Beginners) In this end-to-end example, you will learn – SQL Tutorials for Business Analyst: SQL | FULL JOINS. The SQL FULL JOIN combines the results of both left and right outer joins. The joined table will contain all records from both the tables and fill in NULLs for missing matches …
(SQL tutorials for Business Analyst & Beginners) In this end-to-end example, you will learn – SQL Tutorials for Business Analyst: SQL | RIGHT JOINS. The SQL RIGHT JOIN returns all rows from the right table, even if there are no matches in the left table. This means that if the ON clause matches 0 (zero) records …
(SQL tutorials for Business Analyst & Beginners) In this end-to-end example, you will learn – SQL Tutorials for Business Analyst: SQL | LEFT JOINS. The SQL LEFT JOIN returns all rows from the left table, even if there are no matches in the right table. This means that if the ON clause matches 0 (zero) records …
(SQL tutorials for Business Analyst & Beginners) In this end-to-end example, you will learn – SQL Tutorials for Business Analyst: SQL | INNER JOINS. The most important and frequently used of the joins is the INNER JOIN. They are also referred to as an EQUIJOIN. The INNER JOIN creates a new result table by combining column …
(SQL tutorials for Business Analyst & Beginners) In this end-to-end example, you will learn – SQL Tutorials for Business Analyst: SQL | Using Joins. The SQL Joins clause is used to combine records from two or more tables in a database. A JOIN is a means for combining fields from two tables by using values common …
(SQL tutorials for Business Analyst & Beginners) In this end-to-end example, you will learn – SQL Tutorials for Business Analyst: SQL | SORTING Results. The SQL ORDER BY clause is used to sort the data in ascending or descending order, based on one or more columns. Some databases sort the query results in an ascending order …
(SQL tutorials for Business Analyst & Beginners) In this end-to-end example, you will learn – SQL Tutorials for Business Analyst: SQL | Distinct Keyword. The SQL DISTINCT keyword is used in conjunction with the SELECT statement to eliminate all the duplicate records and fetching only unique records. There may be a situation when you have multiple …