select ename, sal, deptno from EMP where sal > 2000 and deptno = (select deptno from EMP where ename = "james"); select * from EMP where sal > (select sal from EMP ...

Abstract: Mining query sub-intents or sub-topics is one of the important task in information retrieval. It provides the user several potential queries to explore possible search intents of the user.

SQL is the de-facto language for big-data analytics. Despite the cost of distributed SQL execution being dominated by disk and network I/O, we find that state-of-the-art optimizers produce plans that ...

The recent OceanGate Titan expedition, which has been missing since Sunday, has revealed the dangers of plunging two miles under the ocean’s surface, whether in search of science or adventure (in this ...

A record 4.4 million Americans quit their jobs in September, accounting for 3 percent of the workforce. That’s the highest quit rate since the Bureau of Labor Statistics started keeping track in 2000 ...

-- case 1: whenever we have an unknown present in the question -- case 2: whenever the data to be selected and the condition to be excuted are present in different table we use subquery ...