我正在构建一个带有GROUP BY子句的查询,该子句需要仅基于特定条件对记录进行计数的能力(例如,仅对特定列值等于1的记录进行计数)。SELECT UID, SUM(ContractDollars) AS ContractDollars,(COUNTIF(MyColumn, 1) / COUNT(UID) * 100) -- Get the average of all records that are
目前,我们正在Oracle上执行类似的操作,其查询如下:SELECT COUNT(*) FROM (SELECT * FROM SCHEMA1.MY_TABLE MINUS (SELECT* FROM SCHEMA2.MY_TABLE));ERROR at line 1: ORA-00932: inconsistentdatatypes: expected - got BLOB
显然,当涉及到大型对象(如 )时,Orac
我在做这个查询FROM tableGROUP BY zip ORDER BY amount DESC像这样(虚拟代码)
SELECT zip, COUNT(*) AS amount, COUNT(*) FOR THIS ZIP AS total, (amount/total * 100) AS percent