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  • From: LacaK <lacak AT zoznam.sk>
  • To: FreeTDS Development Group <freetds AT lists.ibiblio.org>
  • Subject: [freetds] Attempt to initiate a new Adaptive Server operation with results pending
  • Date: Fri, 06 Feb 2015 14:30:48 +0100

Hi,
I have program which uses FreeTDS db-lib.dll
Now I have changed TDS version from 7.1 to 7.3 and I start receiving "Attempt to initiate a new Adaptive Server operation with results pending" in some places.

For example, when I send this two commands:
"IF @@TRANCOUNT>0 ROLLBACK"
followed by:
"BEGIN TRANSACTION"
I get above mentioned error.

I attach portion of logs for 7.1 and 7.3 version.

As you can see in both cases is returned : more_results = 1 after "IF @@TRANCOUNT>0 ROLLBACK"
(I do not understand why?)
But in case 7.3 is error raised afterward (in 7.1 no error)

Is it expected ? Can you give me some explanation what is going on ?

Thanks
-Laco.
dblib.c:1673:dbresults returning 2 (NO_MORE_RESULTS)
dblib.c:1333:dbcmd(04D59AB8, IF @@TRANCOUNT>0 ROLLBACK)
dblib.c:1339:dbcmd() bufsz = 17
dblib.c:5833:dbfreebuf(04D59AB8)
dblib.c:1387:dbsqlexec(04D59AB8)
dblib.c:6807:dbsqlsend(04D59AB8)
mem.c:645:tds_free_all_results()
util.c:146:Changed query state from IDLE to QUERYING
util.c:146:Changed query state from QUERYING to PENDING
packet.c:743:Sending packet
0000 01 01 00 3a 00 00 01 00-49 00 46 00 20 00 40 00 |...:.... I.F. .@.|
0010 40 00 54 00 52 00 41 00-4e 00 43 00 4f 00 55 00 |@.T.R.A. N.C.O.U.|
0020 4e 00 54 00 3e 00 30 00-20 00 52 00 4f 00 4c 00 |N.T.>.0. .R.O.L.|
0030 4c 00 42 00 41 00 43 00-4b 00 |L.B.A.C. K.|

dblib.c:4613:dbsqlok(04D59AB8)
dblib.c:4642:dbsqlok() not done, calling tds_process_tokens()
token.c:549:tds_process_tokens(04D5A310, 0166F22C, 0166F23C, 0x6914)
util.c:146:Changed query state from PENDING to READING
packet.c:642:Received packet
0000 04 01 00 1a 00 3c 01 00-fd 01 00 c0 00 00 00 00 |.....<.. ........|
0010 00 fd 00 00 d2 00 00 00-00 00 |........ ..|

token.c:564:processing result tokens. marker is fd(DONE)
token.c:2018:tds_process_end: more_results = 1
was_cancelled = 0
error = 0
done_count_valid = 0
token.c:2035: rows_affected = 0
util.c:146:Changed query state from READING to PENDING
dblib.c:4675:dbsqlok() end status is SUCCEED
dblib.c:4686:dbsqlok() end status was success
dblib.c:1683:dbresults(04D59AB8)
dblib.c:1688:dbresults: dbresults_state is 5 (_DB_RES_SUCCEED)
dblib.c:1673:dbresults returning 1 (SUCCEED)
dblib.c:1333:dbcmd(04D59AB8, BEGIN TRANSACTION)
dblib.c:1339:dbcmd() bufsz = 26
dblib.c:5833:dbfreebuf(04D59AB8)
dblib.c:1387:dbsqlexec(04D59AB8)
dblib.c:6807:dbsqlsend(04D59AB8)
token.c:549:tds_process_tokens(04D5A310, 0166F0C8, 00000000, 0x2282a)
util.c:146:Changed query state from PENDING to READING
token.c:564:processing result tokens. marker is fd(DONE)
token.c:2018:tds_process_end: more_results = 0
was_cancelled = 0
error = 0
done_count_valid = 0
token.c:2035: rows_affected = 0
token.c:2038:tds_process_end() state set to TDS_IDLE
util.c:146:Changed query state from READING to IDLE
mem.c:645:tds_free_all_results()
util.c:146:Changed query state from IDLE to QUERYING
util.c:146:Changed query state from QUERYING to PENDING
packet.c:743:Sending packet
dblib.c:1673:dbresults returning 2 (NO_MORE_RESULTS)
dblib.c:1333:dbcmd(04DE9AB8, IF @@TRANCOUNT>0 ROLLBACK)
dblib.c:1339:dbcmd() bufsz = 17
dblib.c:5833:dbfreebuf(04DE9AB8)
dblib.c:1387:dbsqlexec(04DE9AB8)
dblib.c:6807:dbsqlsend(04DE9AB8)
mem.c:645:tds_free_all_results()
util.c:146:Changed query state from IDLE to QUERYING
util.c:146:Changed query state from QUERYING to PENDING
packet.c:743:Sending packet
0000 01 01 00 50 00 00 01 00-16 00 00 00 12 00 00 00 |...P.... ........|
0010 02 00 01 00 00 00 37 00-00 00 01 00 00 00 49 00 |......7. ......I.|
0020 46 00 20 00 40 00 40 00-54 00 52 00 41 00 4e 00 |F. .@.@. T.R.A.N.|
0030 43 00 4f 00 55 00 4e 00-54 00 3e 00 30 00 20 00 |C.O.U.N. T.>.0. .|
0040 52 00 4f 00 4c 00 4c 00-42 00 41 00 43 00 4b 00 |R.O.L.L. B.A.C.K.|

dblib.c:4613:dbsqlok(04DE9AB8)
dblib.c:4642:dbsqlok() not done, calling tds_process_tokens()
token.c:549:tds_process_tokens(04DEA310, 0166F22C, 0166F23C, 0x6914)
util.c:146:Changed query state from PENDING to READING
packet.c:642:Received packet
0000 04 01 00 30 00 37 01 00-fd 01 00 c0 00 00 00 00 |...0.7.. ........|
0010 00 00 00 00 00 e3 0b 00-0a 00 08 01 00 00 00 37 |........ .......7|
0020 00 00 00 fd 00 00 d2 00-00 00 00 00 00 00 00 00 |........ ........|

token.c:564:processing result tokens. marker is fd(DONE)
token.c:2018:tds_process_end: more_results = 1
was_cancelled = 0
error = 0
done_count_valid = 0
token.c:2035: rows_affected = 0
util.c:146:Changed query state from READING to PENDING
dblib.c:4675:dbsqlok() end status is SUCCEED
dblib.c:4686:dbsqlok() end status was success
dblib.c:1683:dbresults(04DE9AB8)
dblib.c:1688:dbresults: dbresults_state is 5 (_DB_RES_SUCCEED)
dblib.c:1673:dbresults returning 1 (SUCCEED)
dblib.c:1333:dbcmd(04DE9AB8, BEGIN TRANSACTION)
dblib.c:1339:dbcmd() bufsz = 26
dblib.c:5833:dbfreebuf(04DE9AB8)
dblib.c:1387:dbsqlexec(04DE9AB8)
dblib.c:6807:dbsqlsend(04DE9AB8)
token.c:549:tds_process_tokens(04DEA310, 0166F0C8, 00000000, 0x2282a)
util.c:146:Changed query state from PENDING to READING
token.c:564:processing result tokens. marker is e3(ENVCHANGE)
token.c:830:tds_process_tokens::SET_RETURN stopping on current token
util.c:146:Changed query state from READING to PENDING
dblib.c:7909:dbperror(04DE9AB8, 20019, 0)
dblib.c:7977:dbperror: Calling dblib_err_handler with msgno = 20019;
msg->msgtext = "Attempt to initiate a new Adaptive Server operation with
results pending"
dblib.c:7999:dbperror: dblib_err_handler for msgno = 20019; msg->msgtext =
"Attempt to initiate a new Adaptive Server operation with results pending" --
returns 2 (INT_CANCEL)
dblib.c:3207:dbcancel(04DE9AB8)
query.c:2166:tds_send_cancel: not in_cancel and not idle
packet.c:773:Sending packet
0000 06 01 00 08 00 00 01 00- |........|

token.c:549:tds_process_tokens(04DEA310, 0166F1A0, 00000000, 0x0)
util.c:146:Changed query state from PENDING to READING
token.c:564:processing result tokens. marker is e3(ENVCHANGE)
token.c:115:tds_process_default_tokens() marker is e3(ENVCHANGE)
token.c:564:processing result tokens. marker is fd(DONE)
token.c:2018:tds_process_end: more_results = 0
was_cancelled = 0
error = 0
done_count_valid = 0
token.c:2035: rows_affected = 0
packet.c:642:Received packet



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