SELECT c1, c2
FROM t1
INNER JOIN t2 ON condition;
Inner join t1 and t2
SELECT c1, c2
FROM t1
LEFT JOIN t2 ON condition;
Left join t1 and t1
SELECT c1, c2
FROM t1
FULL OUTER JOIN t2 ON condition;
Perform full outer join
SELECT c1, c2
FROM t1
CROSS JOIN t2;
Produce a Cartesian product of rows in tables
SELECT c1, c2
FROM t1 A
INNER JOIN t2 B ON condition;
Join t1 to itself using INNER JOIN clause
SELECT c1, c2
FROM t1
RIGHT JOIN t2 ON condition;
Right join t1 and t2
SELECT c1, c2 FROM t;
Query data in columns c1, c2 from a table
SELECT * FROM t;
Query all rows and columns from a table
SELECT c1, c2 FROM t
WHERE condition;
Query data and filter rows with a condition
SELECT DISTINCT c1 FROM t
WHERE condition;
Query distinct rows from a table
SELECT c1, aggregate(c2)
FROM t
GROUP BY c1;
Group rows using an aggregate function
SELECT c1, aggregate(c2)
FROM t
GROUP BY c1
HAVING condition;
Filter groups using HAVING clause
SELECT c1, c2 FROM t
ORDER BY c1 ASC [DESC];
Sort the result set in ascending or descending
order
SELECT c1, c2 FROM t1
UNION [ALL]
SELECT c1, c2 FROM t2;
Combine rows from two queries
SELECT c1, c2 FROM t1
INTERSECT
SELECT c1, c2 FROM t2;
Return the intersection of two queries
SELECT c1, c2 FROM t1
MINUS
SELECT c1, c2 FROM t2;
Subtract a result set from another result set
SELECT c1, c2 FROM t1
WHERE c1 [NOT] LIKE pattern;
Query rows using pattern matching %, _
SELECT c1, c2 FROM t
WHERE c1 [NOT] IN value_list;
Query rows in a list
SELECT c1, c2 FROM t
WHERE c1 BETWEEN low AND high;
Query rows between two values
SELECT c1, c2 FROM t
WHERE c1 IS [NOT] NULL;
Check if values in a table is NULL or not
QUERYING DATA FROM A TABLE QUERYING FROM MULTIPLE TABLES USING SQL OPERATORS
SELECT c1, c2 FROM t
ORDER BY c1
LIMIT nOFFSET offset;
Skip offset of rows and return the next n rows
SELECT c1, c2
FROM t1, t2;
Another way to perform cross join
SQL CHEAT SHEET http://www.sqltutorial.org
