Not sure if your environment would show this, but you can simulate this via ST05ACC: "Enter SQL Statement" and give the below SQL: I have taken this SQL based on our environment. ================================================================== SELECT "MANDT" ,"MESTYPE" AS c ,"CPIDENT" AS c ,"PROCESS" AS c ,"TABNAME" AS c , "TABKEY" AS c ,"FLDNAME" AS c ,"CRETIME" AS c ,"ACTTIME" AS c ,"USRNAME" AS c , "CDOBJCL" AS c ,"CDOBJID" AS c ,"CDCHGNO" AS c ,"CDCHGID" AS c FROM "BDCP2" WHERE "MANDT" = '010' AND "MESTYPE" = 'RS0011' AND "PROCESS" = ' ' ORDER BY "MANDT" ,"CPIDENT" ================================================================== Explain; I could see extimated IO: 9.8143 Estimated Rows: 267836. but if I execute SE16 with table BDCP2 with the following criteria in selection: MSGTYPE: RS0011 Process: Exclude "X" then you see number of rows as 9185 (approximate). In my assumption, if system uses index 001, then the estimated IO cost would be negligible.
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