Fill in the blanks:
1. The SQL keyword _______ is used in SQL expressions to select records based on patterns.
2. The ________ operator is used for making range checks in SELECT queries.
3. The null values in a column can be searched for in a table using _____ ______ in the WHERE clause of SELECT query.
4. To sort the rows of the result table, the _____ _____ clause is specified.
5. Columns can be sorted in descending sequence by using the SQL keyword ________.