Tahun : 2016 Pengarang : Matthew Morris Penerbit : ODB PRESS Ket : To do well on the test you have to have a good grasp of SQL syntax rules.
You’ll also need to be able to utilize some common SQL functions, recognize
the result of basic DDL operations, and know some of the facts regarding
how SQL statements and functions are executed. Not all of the exhibits in the
test are really crucial to answering the question being asked. You should read
the question being asked before viewing the exhibit. If nothing else, reading
the question first will provide you with information on what to look for in the
exhibit, and it may allow you to skip viewing it entirely, giving you more
time for other questions. Be sure to look at all of the answers before selecting
what you think is the correct one. In some cases, more than one answer could
be considered ‘correct’, but one of the two is a better answer. Also, it’s
valuable to look through the questions that contain SQL statements to find
those with errors. Once you have eliminated those with obvious errors, you
can concentrate on the remaining options to find the best solution. Ketegori : DATABASE