Database Trigger Carry out Crosstabulation Flexibly
Cheng-Yong Zhang · Computer Programming Skills & Maintenance · 2009
Trigger is a more advanced application in database-programming, and flexibly using the triggers can greatly strengthen the stalwart and recoverability. At the same time trigger can also help developers achieve some complicated functions easily, and then increase the efficiency of program-developing. This paper introduces that trigger carry out crosstabulation flexibly in the Attendance Management Information System by examples.