i had 5 connections to the database(sqlserver2012)among first 2 connections executed the connections and 3rd connection failed to execute the same query.
2016/04/28 20:03:39 普通: Creating statement Done
2016/04/28 20:03:39 普通: Executing query of Select COUNT(*) from metriclistinfo
2016/04/28 20:03:39 普通: Executing next function on ResultSet object
2016/04/28 20:03:39 普通: Returned no of rows8
2016/04/28 20:03:39 普通: Executing query ofSelect * from metriclistinfo
2016/04/28 20:03:39 普通: Data available in resultset2 : APPLICATIONIndex0
2016/04/28 20:03:39 普通: Data available in resultset2 : GLOBALIndex1
2016/04/28 20:03:39 普通: Data available in resultset2 : SYSDOWNTIMEIndex2
2016/04/28 20:03:39 普通: Data available in resultset2 : TRANSACTIONSIndex3
2016/04/28 20:03:39 普通: Data available in resultset2 : UPTIMEIndex4
2016/04/28 20:03:39 普通: Data available in resultset2 : VM_CONFIGIndex5
2016/04/28 20:03:39 普通: Data available in resultset2 : VM_GLOBALIndex6
2016/04/28 20:03:39 普通: Data available in resultset2 : VM_LOGICALIndex7
2016/04/28 20:03:39 普通: Creating statement Done
2016/04/28 20:03:39 普通: Executing query of Select COUNT(*) from metriclistinfo
2016/04/28 20:03:39 普通: Executing next function on ResultSet object
2016/04/28 20:03:39 普通: Returned no of rows8
2016/04/28 20:03:39 重大: Exception while getting metadata from source:Unknown data type:78
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