获取字符串长度:length(字段)
字符串转数组:collect_list 列转行可得到数据,或split()某个字段得到数组
获取数组长度:size(数组字段)
参考sql:
set edate=2019-07-21
SET company=***;
SET recomrecords=ods.ods_${hiveconf:company_RecomRecords;
SET employees=ods.ods_${hiveconf:company}_base_employees;
SET branchs=ods.ods_${hiveconf:company}_base_branchs;
SET regions=ods.ods_${hiveconf:company}_base_regions;
SELECT
EmployeeNo,
collect_list(FillinDate) FillinDate,
collect_list(FillinDate)[size(collect_list(FillinDate))-1] FillinDate,//取数组最后一个值
size(collect_list(FillinDate))
FROM
${hiveconf:recomrecords}
WHERE
EmployeeNo='401800106'
AND FillinDate>='2019-07-15'
AND FillinDate<='2019-07-21'
AND PhaseId=10
AND IsApprove=1
AND IsCancel IS NULL
GROUP BY
EmployeeNo
ORDER BY
fillindate DESC