Posts

Showing posts with the label SQL

Coding Problem 3 - Weather Observation Station 7 [HackerRank - SQL]

Image
  Query the list of   CITY   names ending with vowels (a, e, i, o, u) from   STATION . Your result   cannot   contain duplicates. Input Format The  STATION  table is described as follows: where  LAT_N  is the northern latitude and  LONG_W  is the western longitude. Notes :  SUBSTR() The SUBSTR() function extracts a substring from a string (starting at any position). Note:  The SUBSTR() and  MID()  functions equals to the  SUBSTRING()  function. Syntax SUBSTR( string ,  start ,  length ) Parameter Values Parameter Description string Required. The string to extract from start Required. The start position. Can be both a positive or negative number. If it is a positive number, this function extracts from the beginning of the string. If it is a negative number, this function extracts from the end of the string length Optional. The number of characters to extract. If omitted, the whole string w...