C#

Me.OdbcSelectCommand2.CommandText =  "SELECT SAMFILE.STAYP.SCLINT, SAMFILE.STAYP.SADMHH, SAMFILE.STAYP.SADMYY, SAMFILE.STAYP.SADMMM, SAMFILE.STAYP.SBLDG, SAMFILE.STAYP.SADMDD, SAMFILE.STAYP.STRMCD, SAMFILE.STAYP.STRMHH, SAMFILE.STAYP.STRMYY, SAMFILE.STAYP.STRMMM, SAMFILE.STAYP.STRMDD, SAMFILE.CLIENTP.CNAME, SAMFILE.CLIENTP.CRACE1, SAMFILE.CLIENTP.CRACE2, SAMFILE.CLIENTP.CRELIG, SAMFILE.CLIENTP.CSEX, SAMFILE.CLIENTP.CBTHHH, SAMFILE.CLIENTP.CBTHYY, SAMFILE.CLIENTP.CBTHMM, SAMFILE.CLIENTP.CBTHDD, SAMFILE.REFSRP.REFSDS, SAMFILE.STAYP.SMDPM, SAMFILE.STAYP.SREFRL, SAMFILE.STAYP.SADRG1, SAMFILE.STAYP.SADRG2, SAMFILE.RACETP.RACEDS, SAMFILE.RELIGP.RELGDS, SAMFILE.STAYP.SADMAG  FROM  SAMFILE.REFSRP, SAMFILE.RELIGP, SAMFILE.RACETP, {            oj SAMFILE.STAYP            LEFT OUTER "JOIN SAMFILE.CLIENTP            ON SAMFILE.STAYP.SCLINT = SAMFILE.CLIENTP.""CLNT#""}  WHERE  SAMFILE.REFSRP.REFSCD = SAMFILE.STAYP.SREFRL AND SAMFILE.RELIGP.RELGCD = SAMFILE.CLIENTP.CRELIG AND SAMFILE.RACETP.RACECD = SAMFILE.CLIENTP.CRACE1" // After some loop conditions, the OdbcSelectCommand2 is used in 4 concatenations like this. OdbcSelectCommand2.CommandText = OdbcSelectCommand2.CommandText & " AND (({ fn CONCAT({ fn CONCAT({ fn CONCAT({ fn CONCAT({ fn CONCAT(digits(SADMHH), digits(SADMYY)) }, '-') }, digits(SADMMM)) }, '-') }, digits(SADMDD)) } <= { d '" & End_date_conv & "' })"OdbcSelectCommand2.CommandText = OdbcSelectCommand2.CommandText & " AND ({ fn CONCAT({ fn CONCAT({ fn CONCAT({ fn CONCAT({ fn CONCAT(digits(STRMHH), digits(STRMYY)) }, '-') }, digits(STRMMM)) }, '-') }, digits(STRMDD)) } >= { d '" & Start_date_conv & "' })"OdbcSelectCommand2.CommandText = OdbcSelectCommand2.CommandText & " OR  ({ fn CONCAT({ fn CONCAT({ fn CONCAT({ fn CONCAT({ fn CONCAT(digits(SADMHH), digits(SADMYY)) }, '-') }, digits(SADMMM)) }, '-') }, digits(SADMDD)) } <= { d '" & End_date_conv & "' })"OdbcSelectCommand2.CommandText = OdbcSelectCommand2.CommandText & " AND (SAMFILE.STAYP.STRMCD = 0))" // To get the desired result, one more table is suppossed to be used, i.e MOVESP table, but its a tremendously huge table containing records of more than 30+ years and each id is having multiple records and to get the expected result it should be used in the code as something like this. But everytime I try this, it throws an exception "System.outofmemoryexception". I tried increasing the physical and virtual RAM and even timeout durations too but all in vain. OdbcSelectCommand2.CommandText = OdbcSelectCommand2.CommandText & " AND (SAMFILE.MOVESP.MCODE = 'A'))"