To lock the output of a SELECT query
Hi,
I want to lock the output of a SELECT query to some transaction.
I have wriiten it as follows , the output of the query is a single row;
SELECT empname
FROM employees
where empid = 100
FOR UPDATE;
Specifying only FOR UPDATE is proper or do i need to specify some more clause ??
Thanks.
bscalzo wrote:
You can also specify the columns to lock if you like:
select x, y, z from aaa where x = 1 for update of x, y;
But the locking is still currently only done at the row level - but who knows what the future might offer. May not hurt to have the columns named for thay day when the syntax and engine sync up :)It might be worth to amend that specifying the columns is already particularly relevant if you select from multiple tables/views in order to specify which rows of which table/view to lock.
Regards,
Randolf
Oracle related stuff blog:
http://oracle-randolf.blogspot.com/
SQLTools++ for Oracle (Open source Oracle GUI for Windows):
http://www.sqltools-plusplus.org:7676/
http://sourceforge.net/projects/sqlt-pp/
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I found what I was looking for at the following forum thread.
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Hi,
I have been preparing a report which involves data to be fetched from 4 to 5 different tables and calculation has to performed on some columns also,
i planned to write a single cursor to populate 1 temp table.i have used INLINE VIEW,EXISTS more frequently in the select query..please go through the query and suggest me a better way to restructure the query.
cursor c_acc_pickup_incr(p_branch_code varchar2, p_applDate date, p_st_dt date, p_ed_dt date) is
select sca.branch_code "BRANCH",
sca.cust_ac_no "ACCOUNT",
to_char(p_applDate, 'YYYYMM') "YEARMONTH",
sca.ccy "CURRENCY",
sca.account_class "PRODUCT",
sca.cust_no "CUSTOMER",
sca.ac_desc "DESCRIPTION",
null "LOW_BAL",
null "HIGH_BAL",
null "AVG_CR_BAL",
null "AVG_DR_BAL",
null "CR_DAYS",
null "DR_DAYS",
--null "CR_TURNOVER",
--null "DR_TURNOVER",
null "DR_OD_DAYS",
(select sum(gf.limit_amount * (scal.linkage_percentage / 100)) +
(case when (p_applDate >= sca.tod_limit_start_date and
p_applDate <= nvl(sca.tod_limit_end_date, p_applDate)) then
sca.tod_limit else 0 end) dd
from getm_facility gf, sttm_cust_account_linkages scal
where gf.line_code || gf.line_serial = scal.linked_ref_no
and cust_ac_no = sca.cust_ac_no) "OD_LIMIT",
--sc.credit_rating "CR_GRADE",
null "AVG_NET_BAL",
null "UNAUTH_OD_AMT",
sca.acy_blocked_amount "AMT_BLOCKED",
(select sum(amt)
from ictb_entries_history ieh
where ieh.acc = sca.cust_ac_no
and ieh.brn = sca.branch_code
and ieh.drcr = 'D'
and ieh.liqn = 'Y'
and ieh.entry_passed = 'Y'
and ieh.ent_dt between p_st_dt and p_ed_dt
and exists (
select * from ictm_pr_int ipi, ictm_rule_frm irf
where ipi.product_code = ieh.prod
and ipi.rule = irf.rule_id
and irf.book_flag = 'B')) "DR_INTEREST",
(select sum(amt)
from ictb_entries_history ieh
where ieh.acc = sca.cust_ac_no
and ieh.brn = sca.branch_code
and ieh.drcr = 'C'
and ieh.liqn = 'Y'
and ieh.entry_passed = 'Y'
and ieh.ent_dt between p_st_dt and p_ed_dt
and exists (
select * from ictm_pr_int ipi, ictm_rule_frm irf
where ipi.product_code = ieh.prod
and ipi.rule = irf.rule_id
and irf.book_flag = 'B')) "CR_INTEREST",
(select sum(amt) from ictb_entries_history ieh
where ieh.brn = sca.branch_code
and ieh.acc = sca.cust_ac_no
and ieh.ent_dt between p_st_dt and p_ed_dt
and exists (
select product_code
from ictm_product_definition ipd
where ipd.product_code = ieh.prod
and ipd.product_type = 'C')) "FEE_INCOME",
sca.record_stat "ACC_STATUS",
case when (trunc(sca.ac_open_date,'MM') = trunc(p_applDate,'MM')
and not exists (select 1
from ictm_tdpayin_details itd
where itd.multimode_payopt = 'Y'
and itd.brn = sca.branch_code
and itd.acc = sca.cust_ac_no
and itd.multimode_offset_brn is not null
and itd.multimode_tdoffset_acc is not null))
then 1 else 0 end "NEW_ACC_FOR_THE_MONTH",
case when (trunc(sca.ac_open_date,'MM') = trunc(p_applDate,'MM')
and trunc(sc.cif_creation_date,'MM') = trunc(p_applDate,'MM')
and not exists (select 1
from ictm_tdpayin_details itd
where itd.multimode_payopt = 'Y'
and itd.brn = sca.branch_code
and itd.acc = sca.cust_ac_no
and itd.multimode_offset_brn is not null
and itd.multimode_tdoffset_acc is not null))
then 1 else 0 end "NEW_ACC_FOR_NEW_CUST",
(select 1 from dual
where exists (select 1 from ictm_td_closure_renew itcr
where itcr.brn = sca.branch_code
and itcr.acc = sca.cust_ac_no
and itcr.renewal_date = sysdate)
or exists (select 1 from ictm_tdpayin_details itd
where itd.multimode_payopt = 'Y'
and itd.brn = sca.branch_code
and itd.acc = sca.cust_ac_no
and itd.multimode_offset_brn is not null
and itd.multimode_tdoffset_acc is not null)) "RENEWED_OR_ROLLOVER",
(select maturity_date from ictm_acc ia
where ia.brn = sca.branch_code
and ia.acc = sca.cust_ac_no) "MATURITY_DATE",
sca.ac_stat_no_dr "DR_DISALLOWED",
sca.ac_stat_no_cr "CR_DISALLOWED",
sca.ac_stat_block "BLOCKED_ACC", Not Reqd
sca.ac_stat_dormant "DORMANT_ACC",
sca.ac_stat_stop_pay "STOP_PAY_ACC", --New
sca.ac_stat_frozen "FROZEN_ACC",
sca.ac_open_date "ACC_OPENING_DT",
sca.address1 "ADD_LINE_1",
sca.address2 "ADD_LINE_2",
sca.address3 "ADD_LINE_3",
sca.address4 "ADD_LINE_4",
sca.joint_ac_indicator "JOINT_ACC",
sca.acy_avl_bal "CR_BAL",
0 "DR_BAL",
0 "CR_BAL_LCY", t
0 "DR_BAL_LCY",
null "YTD_CR_MOVEMENT",
null "YTD_DR_MOVEMENT",
null "YTD_CR_MOVEMENT_LCY",
null "YTD_DR_MOVEMENT_LCY",
null "MTD_CR_MOVEMENT",
null "MTD_DR_MOVEMENT",
null "MTD_CR_MOVEMENT_LCY",
null "MTD_DR_MOVEMENT_LCY",
'N' "BRANCH_TRFR", --New
sca.provision_amount "PROVISION_AMT",
sca.account_type "ACCOUNT_TYPE",
nvl(sca.tod_limit, 0) "TOD_LIMIT",
nvl(sca.sublimit, 0) "SUB_LIMIT",
nvl(sca.tod_limit_start_date, global.min_date) "TOD_START_DATE",
nvl(sca.tod_limit_end_date, global.max_date) "TOD_END_DATE"
from sttm_cust_account sca, sttm_customer sc
where sca.branch_code = p_branch_code
and sca.cust_no = sc.customer_no
and ( exists (select 1 from actb_daily_log adl
where adl.ac_no = sca.cust_ac_no
and adl.ac_branch = sca.branch_code
and adl.trn_dt = p_applDate
and adl.auth_stat = 'A')
or exists (select 1 from catm_amount_blocks cab
where cab.account = sca.cust_ac_no
and cab.branch = sca.branch_code
and cab.effective_date = p_applDate
and cab.auth_stat = 'A')
or exists (select 1 from ictm_td_closure_renew itcr
where itcr.acc = sca.cust_ac_no
and itcr.brn = sca.branch_code
and itcr.renewal_date = p_applDate)
or exists (select 1 from sttm_ac_stat_change sasc
where sasc.cust_ac_no = sca.cust_ac_no
and sasc.branch_code = sca.branch_code
and sasc.status_change_date = p_applDate
and sasc.auth_stat = 'A')
or exists (select 1 from cstb_acc_brn_trfr_log cabtl
where cabtl.branch_code = sca.branch_code
and cabtl.cust_ac_no = sca.cust_ac_no
and cabtl.process_status = 'S'
and cabtl.process_date = p_applDate)
or exists (select 1 from sttbs_provision_history sph
where sph.branch_code = sca.branch_code
and sph.cust_ac_no = sca.cust_ac_no
and sph.esn_date = p_applDate)
or exists (select 1 from sttms_cust_account_dormancy scad
where scad.branch_code = sca.branch_code
and scad.cust_ac_no = sca.cust_ac_no
and scad.dormancy_start_dt = p_applDate)
or sca.maker_dt_stamp = p_applDate
or sca.status_since = p_applDate
l_tb_acc_det ty_tb_acc_det_int;
l_brnrec cvpks_utils.rec_brnlcy;
l_acbr_lcy sttms_branch.branch_lcy%type;
l_lcy_amount actbs_daily_log.lcy_amount%type;
l_xrate number;
l_dt_rec sttm_dates%rowtype;
l_acc_rec sttm_cust_account%rowtype;
l_acc_stat_row ty_r_acc_stat;
Edited by: user13710379 on Jan 7, 2012 12:18 AMI see it more like shown below (possibly with no inline selects
Try to get rid of the remaining inline selects ( left as an exercise ;) )
and rewrite traditional joins as ansi joins as problems might arise using mixed syntax as I have to leave so I don't have time to complete the query
select sca.branch_code "BRANCH",
sca.cust_ac_no "ACCOUNT",
to_char(p_applDate, 'YYYYMM') "YEARMONTH",
sca.ccy "CURRENCY",
sca.account_class "PRODUCT",
sca.cust_no "CUSTOMER",
sca.ac_desc "DESCRIPTION",
null "LOW_BAL",
null "HIGH_BAL",
null "AVG_CR_BAL",
null "AVG_DR_BAL",
null "CR_DAYS",
null "DR_DAYS",
-- null "CR_TURNOVER",
-- null "DR_TURNOVER",
null "DR_OD_DAYS",
w.dd "OD_LIMIT",
-- sc.credit_rating "CR_GRADE",
null "AVG_NET_BAL",
null "UNAUTH_OD_AMT",
sca.acy_blocked_amount "AMT_BLOCKED",
x.dr_int "DR_INTEREST",
x.cr_int "CR_INTEREST",
y.fee_amt "FEE_INCOME",
sca.record_stat "ACC_STATUS",
case when trunc(sca.ac_open_date,'MM') = trunc(p_applDate,'MM')
and not exists(select 1
from ictm_tdpayin_details itd
where itd.multimode_payopt = 'Y'
and itd.brn = sca.branch_code
and itd.acc = sca.cust_ac_no
and itd.multimode_offset_brn is not null
and itd.multimode_tdoffset_acc is not null
then 1
else 0
end "NEW_ACC_FOR_THE_MONTH",
case when (trunc(sca.ac_open_date,'MM') = trunc(p_applDate,'MM')
and trunc(sc.cif_creation_date,'MM') = trunc(p_applDate,'MM')
and not exists(select 1
from ictm_tdpayin_details itd
where itd.multimode_payopt = 'Y'
and itd.brn = sca.branch_code
and itd.acc = sca.cust_ac_no
and itd.multimode_offset_brn is not null
and itd.multimode_tdoffset_acc is not null
then 1
else 0
end "NEW_ACC_FOR_NEW_CUST",
(select 1 from dual
where exists(select 1
from ictm_td_closure_renew itcr
where itcr.brn = sca.branch_code
and itcr.acc = sca.cust_ac_no
and itcr.renewal_date = sysdate
or exists(select 1
from ictm_tdpayin_details itd
where itd.multimode_payopt = 'Y'
and itd.brn = sca.branch_code
and itd.acc = sca.cust_ac_no
and itd.multimode_offset_brn is not null
and itd.multimode_tdoffset_acc is not null
) "RENEWED_OR_ROLLOVER",
m.maturity_date "MATURITY_DATE",
sca.ac_stat_no_dr "DR_DISALLOWED",
sca.ac_stat_no_cr "CR_DISALLOWED",
-- sca.ac_stat_block "BLOCKED_ACC", --Not Reqd
sca.ac_stat_dormant "DORMANT_ACC",
sca.ac_stat_stop_pay "STOP_PAY_ACC", --New
sca.ac_stat_frozen "FROZEN_ACC",
sca.ac_open_date "ACC_OPENING_DT",
sca.address1 "ADD_LINE_1",
sca.address2 "ADD_LINE_2",
sca.address3 "ADD_LINE_3",
sca.address4 "ADD_LINE_4",
sca.joint_ac_indicator "JOINT_ACC",
sca.acy_avl_bal "CR_BAL",
0 "DR_BAL",
0 "CR_BAL_LCY", t
0 "DR_BAL_LCY",
null "YTD_CR_MOVEMENT",
null "YTD_DR_MOVEMENT",
null "YTD_CR_MOVEMENT_LCY",
null "YTD_DR_MOVEMENT_LCY",
null "MTD_CR_MOVEMENT",
null "MTD_DR_MOVEMENT",
null "MTD_CR_MOVEMENT_LCY",
null "MTD_DR_MOVEMENT_LCY",
'N' "BRANCH_TRFR", --New
sca.provision_amount "PROVISION_AMT",
sca.account_type "ACCOUNT_TYPE",
nvl(sca.tod_limit, 0) "TOD_LIMIT",
nvl(sca.sublimit, 0) "SUB_LIMIT",
nvl(sca.tod_limit_start_date, global.min_date) "TOD_START_DATE",
nvl(sca.tod_limit_end_date, global.max_date) "TOD_END_DATE"
from sttm_cust_account sca,
sttm_customer sc,
(select sca.cust_ac_no
sum(gf.limit_amount * (scal.linkage_percentage / 100)) +
case when p_applDate >= sca.tod_limit_start_date
and p_applDate <= nvl(sca.tod_limit_end_date, p_applDate)
then sca.tod_limit else 0
end
) dd
from sttm_cust_account sca
getm_facility gf,
sttm_cust_account_linkages scal
where gf.line_code || gf.line_serial = scal.linked_ref_no
and cust_ac_no = sca.cust_ac_no
group by sca.cust_ac_no
) w,
(select acc,
brn,
sum(decode(drcr,'D',amt)) dr_int,
sum(decode(drcr,'C',amt)) cr_int
from ictb_entries_history ieh
where ent_dt between p_st_dt and p_ed_dt
and drcr in ('C','D')
and liqn = 'Y'
and entry_passed = 'Y'
and exists(select null
from ictm_pr_int ipi,
ictm_rule_frm irf
where ipi.rule = irf.rule_id
and ipi.product_code = ieh.prod
and irf.book_flag = 'B'
group by acc,brn
) x,
(select acc,
brn,
sum(amt) fee_amt
from ictb_entries_history ieh
where ieh.ent_dt between p_st_dt and p_ed_dt
and exists(select product_code
from ictm_product_definition ipd
where ipd.product_code = ieh.prod
and ipd.product_type = 'C'
group by acc,brn
) y,
ictm_acc m,
(select sca.cust_ac_no,
sca.branch_code
coalesce(nvl2(coalesce(t1.ac_no,t1.ac_branch),'exists',null),
nvl2(coalesce(t2.account,t2.account),'exists',null),
nvl2(coalesce(t3.acc,t3.brn),'exists',null),
nvl2(coalesce(t4.cust_ac_no,t4.branch_code),'exists',null),
nvl2(coalesce(t5.cust_ac_no,t5.branch_code),'exists',null),
nvl2(coalesce(t6.cust_ac_no,t6.branch_code),'exists',null),
nvl2(coalesce(t7.cust_ac_no,t7.branch_code),'exists',null),
decode(sca.maker_dt_stamp,p_applDate,'exists'),
decode(sca.status_since,p_applDate,'exists')
) existence
from sttm_cust_account sca
left outer join
(select ac_no,ac_branch
from actb_daily_log
where trn_dt = p_applDate
and auth_stat = 'A'
) t1
on (sca.cust_ac_no = t1.ac_no
and sca.branch_code = t1.ac_branch
left outer join
(select account,account
from catm_amount_blocks
where effective_date = p_applDate
and auth_stat = 'A'
) t2
on (sca.cust_ac_no = t2.account
and sca.branch_code = t2.branch
left outer join
(select acc,brn
from ictm_td_closure_renew itcr
where renewal_date = p_applDate
) t3
on (sca.cust_ac_no = t3.acc
and sca.branch_code = t3.brn
left outer join
(select cust_ac_no,branch_code
from sttm_ac_stat_change
where status_change_date = p_applDate
and auth_stat = 'A'
) t4
on (sca.cust_ac_no = t4.cust_ac_no
and sca.branch_code = t4.branch_code
left outer join
(select cust_ac_no,branch_code
from cstb_acc_brn_trfr_log
where process_date = p_applDate
and process_status = 'S'
) t5
on (sca.cust_ac_no = t5.cust_ac_no
and sca.branch_code = t5.branch_code
left outer join
(select cust_ac_no,branch_code
from sttbs_provision_history
where esn_date = p_applDate
) t6
on (sca.cust_ac_no = t6.cust_ac_no
and sca.branch_code = t6.branch_code
left outer join
(select cust_ac_no,branch_code
from sttms_cust_account_dormancy
where dormancy_start_dt = p_applDate
) t7
on (sca.cust_ac_no = t7.cust_ac_no
and sca.branch_code = t7.branch_code
) z
where sca.branch_code = p_branch_code
and sca.cust_no = sc.customer_no
and sca.cust_ac_no = w.cust_ac_no
and sca.cust_ac_no = x.acc
and sca.branch_code = x.brn
and sca.cust_ac_no = y.acc
and sca.branch_code = y.brn
and sca.cust_ac_no = m.acc
and sca.branch_code = m.brn
and sca.cust_ac_no = z.sca.cust_ac_no
and sca.branch_code = z.branch_code
and z.existence is not nullRegards
Etbin -
Records are getting overwritten in the internal table using Select query.
Hi All,
I have following query :
Loop at i_salesplant.
select maramatnr mvkeVKORG mvkeVTWEG maraZZCOEAFE maraZZCOEAFEUOM mvkeZZALLPOL
into corresponding fields of table i_zallocpol from mara inner join mvke on
mvkematnr = maramatnr
where MARA~zzobjtype = I_ZZOBJTYPE
and MVKE~VKORG = i_salesplant-vkorg
and MVKE~VTWEG = T_VTWEG.
ENDLOOP.
My Que : For example lets say first it selects all the records for Sales Org 1000. Next when you select the records for the Sales Org 2000 the earlier records are getting overwritten.
Please let me know your valuable inputs.
Thanks,
ChandravadanHi,
Thanks alot for the reply.
I changed query using appending as follows :
Loop at i_salesplant.
select maramatnr mvkeVKORG mvkeVTWEG maraZZCOEAFE maraZZCOEAFEUOM mvkeZZALLPOL
into appending corresponding fields of table i_zallocpol from mara inner join mvke on
mvkematnr = maramatnr
where MARA~zzobjtype = I_ZZOBJTYPE
and MVKE~VKORG = i_salesplant-vkorg
and MVKE~VTWEG = T_VTWEG.
ENDLOOp.
But it is giving error saying " Field "APPENDING" is unknown. It is neither in one of the specified tables nor defined by a "DATA" statement. "
Please suggest.
Thanks,
Chandravadan -
Call the Function against a select query in 500 procedures...
Hello Gurus,
I have a scenario, where i had made one function(UDF Function) to calculate something and in every procedure i call that function and calculate my requirement.
Yesterday, i made a select query using reg exp for the same calculation..
So my question is, what should be the proper approach..
I need to implement this on 500 procedures...
And the UDF function is
CREATE OR REPLACE FUNCTION "UDF_TEXTSPLIT" (
p_list VARCHAR2,
p_del VARCHAR2 := ','
) RETURN split_tbl pipelined
IS
l_idx PLS_INTEGER;
l_list VARCHAR2(7999) ;
l_value VARCHAR2(7999);
BEGIN
l_list := p_list;
LOOP
l_idx := INSTR(l_list,p_del);
IF l_idx > 0 THEN
pipe ROW(SUBSTR(l_list,1,l_idx-1));
l_list := SUBSTR(l_list,l_idx+LENGTH(p_del));
ELSE
pipe ROW(l_list);
EXIT;
END IF;
END LOOP;
RETURN;
END Udf_Textsplit;
I have made this query:
SELECT a.b,z. b1 FROM
(SELECT ROWNUM d,REGEXP_SUBSTR(str1, '[^> ]+', 1, LEVEL) b
FROM (SELECT 'xxx>zzz>gg' str1 FROM dual)
CONNECT BY REGEXP_SUBSTR(str1, '[^> ]+', 1, LEVEL) IS NOT NULL)a,
(SELECT ROWNUM d,REGEXP_SUBSTR(str1, '[^> ]+', 1, LEVEL) b1
FROM (SELECT '100>500>20' str1 FROM dual)
CONNECT BY REGEXP_SUBSTR(str1, '[^> ]+', 1, LEVEL) IS NOT NULL)z
WHERE a.d=z.d
Do i use the same select query in all 500 procedures or call the (UDF Function) in every procedure..
So which will be faster...
Your approach would be very much appreciated...
Thanks,
Haraprasad...Hmm, do I edit 500 procedures to replace a function call with a SQL statement, or edit 1 function to use a sql statement instead of the current algorithm?
This is why we use code modules that do one thing and do it well. As long as the new version of the function takes the same arguments and returns the same results as the old, then the callers will never know that the way the function works has changed.
Whenther you put the select statement in 500 procedures, or 1 function, there will still be a context switch every time you use it. The tiny additional overhead of calling a function before the context switch would be unnoticeable.
John -
Newby: locking the table on a SELECT?
I have just downloaded SQL developer and have been using it to look at the back end of my work database, but it seems just as I started browsing through tables (by clicking on them in the tree explorer) people started getting kicked out of their front end applications. When I stopped, they stopped getting kicked out. Does my viewing a table lock that table? I have tried also through select tables, and I am not sure about whether it leaves the transaction open and locks the table, or not? Also, because of this I am unsure about the commit button (since it removes all the data when pressed). Can someone please enlighten me. thanks
Along the same line as the database connection limit:
If you are logged in as the same username as the other users, you could be hitting a limit on the username that you are logged in with.
To find the limits specified for a user:
SELECT * FROM sys.dba_profiles where resource_type != 'PASSWORD' AND profile in (select profile from all_users where username = :username) ORDER BY profile;
The most likely value above to check is 'SESSIONS_PER_USER'
There are other possibilities aside from specific user limits, so you may want to check with your dba to find out what you are running up against. The only other thing that I can think of is open cursor limits since I believe that viewing a table opens a cursor.
Eric -
How to read the output of 'tarantella license query' command?
I'm trying to track my license usage (to better determine when to buy new licenses, and to track usage over time).
When I issue the 'tarantella license query command, this is typical of the output I see:
[root@sgdserver ~]# /opt/tarantella/bin/tarantella license query
License usage at: Mon Feb 11 14:03:53 EST 2008
Type In use / Total
Base 6 / 230
UNIX 4 / 230
Mainframe 0 / 230
Windows 0 / 230
AS/400 0 / 230
[root@sgdserver ~]#What is the above saying? Is it saying that I am using 10 licenses out of my 230, or am I just using 6 licenses? In other words, do I add up the numbers or just use the highest one? Or do I just have to worry about the 'Base' license number?
Thanks.The base license is the number of users that are logged into a webtop.
From there you count then connectivity type.
So you have 6 webtop licenses out of 230 consumed and of those 4 users have launched UNIX sessions out of 230 you have licensed.
hope this helps.
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