Update README.md

README.md

@@ -447,3 +447,55 @@ Following are some of the most commonly used constraints available in SQL −
 
 ## SQL Logical Operators ❗
 
+### ALL
+- The ALL operator is used to compare a value to all values in another value set.
+
+2	
+AND
+
+The AND operator allows the existence of multiple conditions in an SQL statement's WHERE clause.
+
+3	
+ANY
+
+The ANY operator is used to compare a value to any applicable value in the list as per the condition.
+
+4	
+BETWEEN
+
+The BETWEEN operator is used to search for values that are within a set of values, given the minimum value and the maximum value.
+
+5	
+EXISTS
+
+The EXISTS operator is used to search for the presence of a row in a specified table that meets a certain criterion.
+
+6	
+IN
+
+The IN operator is used to compare a value to a list of literal values that have been specified.
+
+7	
+LIKE
+
+The LIKE operator is used to compare a value to similar values using wildcard operators.
+
+8	
+NOT
+
+The NOT operator reverses the meaning of the logical operator with which it is used. Eg: NOT EXISTS, NOT BETWEEN, NOT IN, etc. This is a negate operator.
+
+9	
+OR
+
+The OR operator is used to combine multiple conditions in an SQL statement's WHERE clause.
+
+10	
+IS NULL
+
+The NULL operator is used to compare a value with a NULL value.
+
+11	
+UNIQUE
+
+The UNIQUE operator searches every row of a specified table for uniqueness (no duplicates).