A1： Load data. A2： Find the substring after "EN " from the large string, split it into a set by character, extract the preceding numeric members, as well as special characters such as +-%_ in the ...

Is it possible to order by a substring in a returned field?I've got a query which returns at most probably around 10 or so rows of 1 column. However the way this data is formated, it'd be convient ...

In this paper, we tackle a novel type of interesting queries - shortest unique substring queries. Given a (long) string S and a query point q in the string, can we find a shortest substring containing ...