我有这个sparql查询:
SELECT DISTINCT (COUNT(?bw) AS ?total) (COUNT(?bw_bad) AS ?total_bad) WHERE
{
{
SELECT ?bw WHERE
{
?bw unt:has_bwid ?id
}
}
UNION
{
SELECT ?bw_bad WHERE
{
?bw_bad unt:has_rbdname ?rbd_name_bad .
?bw_bad unt:has_concie_0 ?concie_0 .
FILTER(?concie_0 > 40)
}
}
}
这使:
total total_bad
"2155"^^<http://www.w3.org/2001/XMLSchema#integer> "46"^^<http://www.w3.org/2001/XMLSchema#integer>
我想计算它们的百分比,这将得出(46/2155 * 100)2.13%。我该怎么做?我不在乎性能。
我的尝试:
SELECT ((COUNT(?bw_bad) AS ?total_bad)/(COUNT(?bw) AS ?total)*100) WHERE
这给出了此语法错误:
在第10行第34列遇到了““ as”“ AS”“。期待以下其中之一:”)“ ...” =“ ...”!=“ ...”>“ ...” =” ...“ ||” ...“ &&” ...“ +” ...“-” ...“ *” ...“ /” ...“ in” ...“ not in” ... ...。 .. ... ... ... ...
最佳答案
更改此:
SELECT ((COUNT(?bw_bad) AS ?total_bad)/(COUNT(?bw) AS ?total)*100) WHERE
对此:
SELECT (COUNT(?bw_bad)* 100 / (COUNT(?bw)) as ?total) WHERE
关于geometry - 来自两个COUNT的百分比,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/36523672/