The CURRENT TIME special register specifies a time that is based on a reading of the time-of-day clock when the SQL statement is executed at the current server. If this special register is used more than once within a single SQL statement, or used with CURRENT DATE, CURRENT TIMESTAMP, or the CURDATE, CURTIME, or NOW scalar functions within a single statement; all values are based on a single clock reading.28
Using the CL_SCHED table, select all the classes (CLASS_CODE) that start (STARTING) later today. Today's classes have a value of 3 in the DAY column.
SELECT CLASS_CODE FROM CL_SCHED WHERE STARTING > CURRENT TIME AND DAY = 3
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