Sql queries are equal

Hi,
is the below 2 queries are equal?
select currency_code,
rate_type,
call_rate,
p_interest_disc_rate_group_oid,
rate_30_days, rate_60_days, rate_90_days,rate_120_days, rate_180_days ,rate_360_days, MAX(effective_date) as effective_date
from interest_discount_rate where
p_interest_disc_rate_group_oid = 2686364 group by currency_code, rate_type,call_rate, p_interest_disc_rate_group_oid, rate_30_days,
rate_60_days, rate_90_days,rate_120_days, rate_180_days ,rate_360_days order by currency_code
select r.currency_code as Currency_Code,           r.rate_type as RateType,          r.call_rate as CallRate,
r.rate_30_days as Rate30Days,          r.rate_60_days as Rate60Days,          r.rate_90_days as Rate90Days,          r.rate_120_days as Rate120Days,
r.rate_180_days as Rate180Days,          r.rate_360_days as Rate360Days,          r.effective_date as EffectiveDate from
(select currency_code, rate_type, p_interest_disc_rate_group_oid, MAX(effective_date) as effective_date from interest_discount_rate where
p_interest_disc_rate_group_oid = 2686364 group by currency_code, rate_type, p_interest_disc_rate_group_oid) x, interest_discount_rate r
where x.currency_code = r.currency_code and x.rate_type = r.rate_type and x.effective_date = r.effective_date
and x.p_interest_disc_rate_group_oid = r.p_interest_disc_rate_group_oidEdited by: BluShadow on 18-Dec-2012 14:53
added {noformat}{noformat} tags for what it's worth. Please edit your post and replace the code with well formatted structured queries so people can read them

Even ignoring the difference in column aliasing in the second version, the two are not the same. Depending on what you actually want as results, either or neither could be correct.
The first will return one row for each unique combination of the columns in the group by clause, so, every time one or more values for the rate_xx_days columns changes there will be a row in the result. The second will find the latest effective date for the combination of currency_code, rate_type, p_interest_disc_rate_group_oid and return the corresponding values for the other columns. Assuminh that the combination of currency_code, rate_type, p_interest_disc_rate_group_oid and effective_date is unique, it will return only a single row for each combination of currency_code, rate_type, p_interest_disc_rate_group_oid (well, effectively each combination of currency_code, rate_type since p_interest_disc_rate_group_oid is constrained by the predicate).
John

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Edited by: Baguette on 23-Apr-2009 05:13
Edited by: Baguette on 23-Apr-2009 05:32

i see your perspective now. and let me give a perspective to my first reply too.
what i proposed to you was the answer of what i quoted in the message. that is, why didn't you see those views in the new schema you created! and it is still ok but it is done in the portal schema for which you should have privielges too and i assumed you had. my mistake!
now, i can relate your privacy concerns with your earlier message:
Hello, I've been trying to build a dynamic menu. First I went with just plain old plsql: i created a function in the portal schema that returns an unordered, nested list of the pages in my pagegroup and called that function in a regular pl/sql item on my portal page. I did this by querying the wwpob_page$ table and that went just great in my test&development setup (of which I am the admin of course :))
+Then I realized that since I'm not an administrator of the server hosting our portal and I only have very limited privileges (I am only a page group administrator) I will probably not be allowed to utilize this function nor will they agree to install it in the portal schema, and I decided I should build a portlet that does the same thing (so it can be registered and so on, and so it can use the synonyms and tools that are available to registered providers). There already is such a portlet (and provider) registered for use in the target portal, but I don't like it because i uses tables and hard-coded styles so I will cook my own, better version. :)+
+So I downloaded an example portlet and am getting the hang of it, but now I just can't for the life of me figure out how to enable any sql-queries. I have run the provsyns-.sql script, logged in as test_provider/portal and installed my portlet-package as test_provider user. I can see the available pl/sql packages in Toad, but there are no tables or views for me to to see. That means I can't query the portal tables that I need to.+
- by downloading an example portlet, you probably mean you created a new schema. because provsyns work on a schema.
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AMN

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I apologize if this question does not belong on this forum. OTN does have a forum dedicated to Ruby/Ruby On Rails. I admit it doesn't seem to get much traffic. I think that's because most people working with Ruby tend to go for F/OSS products.
Cheers, APC
Blog : http://radiofreetooting.blogspot.com/

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>
http://search.cpan.org/~rehsack/SQL-Statement-1.23/lib/SQL/Statement.pm
BUGS AND LIMITATIONS ^
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>
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"Sathish Venkatesan" <[email protected]> wrote:
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SELECT TRIM (NAME) AS NAME, TRIM (accno) AS accno,
TRIM (connaddress) AS connaddress,
TRIM (CATEGORY) AS CATEGORY, TRIM (landmark) AS landmark,
SUBSTR (accno, 1, 3) AS subdivisionname
FROM consumermaster
WHERE LOWER (accno) LIKE
LOWER ('%' || NVL (caccno, '#noval#') || '%')
OR LOWER (NAME) LIKE LOWER ('%' || NVL (cname, '#noval#') || '%')
OR LOWER (connaddress) LIKE
LOWER ('%' || NVL (cadd, '#noval#') || '%')
OR phone LIKE '%' || NVL (cphone, '#noval#') || '%'
OR accno = (SELECT accno
FROM requestregistration
WHERE requestid = creqid)
UNION
SELECT TRIM (NAME) AS NAME, TRIM (accno) AS accno,
TRIM (connaddress) AS connaddress, TRIM (CATEGORY)
AS CATEGORY,
TRIM (landmark) AS landmark,
SUBSTR (accno, 1, 3) AS subdivisionname
FROM scodetails
WHERE LOWER (accno) LIKE
LOWER ('%' || NVL (caccno, '#noval#') || '%')
OR LOWER (NAME) LIKE LOWER ('%' || NVL (cname, '#noval#') || '%')
OR LOWER (connaddress) LIKE
LOWER ('%' || NVL (cadd, '#noval#') || '%')
OR phone LIKE '%' || NVL (cphone, '#noval#') || '%'
OR accno = (SELECT accno
FROM requestregistration
WHERE requestid = creqid);
it's ok for small tables but now data increase .......
searching method is very slow
now i want to tune this query for better performance
please sugg me best method
Thanks in advance
Regards
vij..

The link given by Asif should get you on the right track for tuning this query.
I just formatted your SQL:
SELECT Trim(NAME)        AS NAME,
       Trim(accno)       AS accno,
       Trim(connaddress) AS connaddress,
       Trim(category)    AS category,
       Trim(landmark)    AS landmark,
       Substr(accno,1,3) AS subdivisionname
FROM   consumermaster
WHERE Lower(accno) LIKE Lower('%'
                               ||Nvl(caccno,'#noval#')
                               ||'%')
        OR Lower(NAME) LIKE Lower('%'
                                  ||Nvl(cname,'#noval#')
                                  ||'%')
        OR Lower(connaddress) LIKE Lower('%'
                                         ||Nvl(cadd,'#noval#')
                                         ||'%')
        OR phone LIKE '%'
                      ||Nvl(cphone,'#noval#')
                      ||'%'
        OR accno = (SELECT accno
                    FROM   requestregistration
                    WHERE requestid = creqid)
UNION
SELECT Trim(NAME)        AS NAME,
       Trim(accno)       AS accno,
       Trim(connaddress) AS connaddress,
       Trim(category)    AS category,
       Trim(landmark)    AS landmark,
       Substr(accno,1,3) AS subdivisionname
FROM   scodetails
WHERE Lower(accno) LIKE Lower('%'
                               ||Nvl(caccno,'#noval#')
                               ||'%')
        OR Lower(NAME) LIKE Lower('%'
                                  ||Nvl(cname,'#noval#')
                                  ||'%')
        OR Lower(connaddress) LIKE Lower('%'
                                         ||Nvl(cadd,'#noval#')
                                         ||'%')
        OR phone LIKE '%'
                      ||Nvl(cphone,'#noval#')
                      ||'%'
        OR accno = (SELECT accno
                    FROM   requestregistration
                    WHERE requestid = creqid); You are using some function on almost each and every column in the where clause. Try getting rid of them as they are hindering the use of indexes, if any, on any of the columns.
Also the guidelines in the link provided are the best starting point.

Problem occured when create a tree table for master-detail view objects using SQL queries?

I am programming a tree table for master-detail view objects using SQL queries and these 2 view objects are not simple singel tables queries, and 2 complex SQL are prepared for master and view objects. see below:
1. Master View object (key attribute is SourceBlock and some varaible bindings are used for this view object.)
SELECT cntr_list.SOURCE_BLOCK,
        sum(
         case when cntr_list.cntr_size_q = '20'
              then cntr_list.cntr_qty
              else 0 end ) as cntr20 ,
        sum(
         case when cntr_list.cntr_size_q = '40'
              then cntr_list.cntr_qty
              else 0 end ) as cntr40 ,
         sum(
         case when cntr_list.cntr_size_q = '45'
              then cntr_list.cntr_qty
              else 0 end ) as cntr45
FROM (
    SELECT yb1.BLOCK_M as SOURCE_BLOCK,
           scn.CNTR_SIZE_Q,
           count(scn.CNTR_SIZE_Q) AS cntr_qty
    FROM SHIFT_CMR scm, SHIFT_CNTR scn, YARD_BLOCK yb1, YARD_BLOCK yb2
    WHERE
    scm.cmr_n = scn.cmr_n
    AND (scm.plan_start_dt BETWEEN to_date(:DateFrom,'YYYY/MM/DD HH24:MI:SS') AND to_date(:DateTo,'YYYY/MM/DD HH24:MI:SS')
    OR scm.plan_end_dt BETWEEN to_date(:DateFrom,'YYYY/MM/DD HH24:MI:SS') AND to_date(:DateTo,'YYYY/MM/DD HH24:MI:SS'))
    AND scm.shift_mode_c = :ShiftModeCode
    AND scm.end_terminal_c = :TerminalCode
    AND scm.start_terminal_c = yb1.terminal_c
    AND scm.start_block_n = yb1.block_n
    AND substr(scn.start_location_c,(instr(scn.start_location_c,',',1,5)+1),instr(scn.start_location_c,',',1,6)-(instr(scn.start_location_c,',',1,5)+1)) BETWEEN yb1.slot_from_n AND yb1.slot_to_n
    AND scm.end_terminal_c = yb2.terminal_c
    AND scm.end_block_n = yb2.block_n
    AND substr(scn.end_location_c,(instr(scn.end_location_c,',',1,5)+1),instr(scn.end_location_c,',',1,6)-(instr(scn.end_location_c,',',1,5)+1)) BETWEEN yb2.slot_from_n AND yb2.slot_to_n
    AND scn.status_c not in (1, 11)
    AND scn.shift_type_c = 'V'
    AND scn.source_c = 'S'
    GROUP BY yb1.BLOCK_M, scn.CNTR_SIZE_Q
) cntr_list
GROUP BY cntr_list.SOURCE_BLOCK
2. Detail View object (key attributes are SourceBlock and EndBlock and same varaible bindings are used for this view object.)
SELECT cntr_list.SOURCE_BLOCK, cntr_list.END_BLOCK,
        sum(
         case when cntr_list.cntr_size_q = '20'
              then cntr_list.cntr_qty
              else 0 end ) as cntr20 ,
        sum(
         case when cntr_list.cntr_size_q = '40'
              then cntr_list.cntr_qty
              else 0 end ) as cntr40 ,
         sum(
         case when cntr_list.cntr_size_q = '45'
              then cntr_list.cntr_qty
              else 0 end ) as cntr45
FROM (
    SELECT yb1.BLOCK_M as SOURCE_BLOCK,
           yb2.BLOCK_M as END_BLOCK,
           scn.CNTR_SIZE_Q,
           count(scn.CNTR_SIZE_Q) AS cntr_qty
    FROM SHIFT_CMR scm, SHIFT_CNTR scn, YARD_BLOCK yb1, YARD_BLOCK yb2
    WHERE
    scm.cmr_n = scn.cmr_n
    AND (scm.plan_start_dt BETWEEN to_date(:DateFrom,'YYYY/MM/DD HH24:MI:SS') AND to_date(:DateTo,'YYYY/MM/DD HH24:MI:SS')
    OR scm.plan_end_dt BETWEEN to_date(:DateFrom,'YYYY/MM/DD HH24:MI:SS') AND to_date(:DateTo,'YYYY/MM/DD HH24:MI:SS'))
    AND scm.shift_mode_c = :ShiftModeCode
    AND scm.end_terminal_c = :TerminalCode
    AND scm.start_terminal_c = yb1.terminal_c
    AND scm.start_block_n = yb1.block_n
    AND substr(scn.start_location_c,(instr(scn.start_location_c,',',1,5)+1),instr(scn.start_location_c,',',1,6)-(instr(scn.start_location_c,',',1,5)+1)) BETWEEN yb1.slot_from_n AND yb1.slot_to_n
    AND scm.end_terminal_c = yb2.terminal_c
    AND scm.end_block_n = yb2.block_n
    AND substr(scn.end_location_c,(instr(scn.end_location_c,',',1,5)+1),instr(scn.end_location_c,',',1,6)-(instr(scn.end_location_c,',',1,5)+1)) BETWEEN yb2.slot_from_n AND yb2.slot_to_n
    AND scn.status_c not in (1, 11)
    AND scn.shift_type_c = 'V'
    AND scn.source_c = 'S'
    GROUP BY yb1.BLOCK_M, yb2.BLOCK_M, scn.CNTR_SIZE_Q
) cntr_list
GROUP BY cntr_list.SOURCE_BLOCK, cntr_list.END_BLOCK
3. I create a view link to create master-detail relationship for these 2 view objects.
masterview.SourceBlock (1)->detailview.SourceBlock (*).
4. I create a tree table using these 2 view objects with master-detail relationship.
When I set default value for variable bindings of these 2 view objects and the matching records exist, tree table can work well. I can expand the master row to display detail row in UI.
But I need to pass in dymamic parameter value for variable bindings of these 2 view objects, tree table cannnot work again. when I expand the master row and no detail row are displayed in UI.
I am sure that I pass in correct parameter value for master/detail view objects and matching records exist.
Managed Bean:
        DCIteratorBinding dc = (DCIteratorBinding)evaluteEL("#{bindings.MasterView1Iterator}");
        ViewObject vo = dc.getViewObject();
        System.out.println("Before MasterView1Iterator vo.getEstimatedRowCount()="+ vo.getEstimatedRowCount());
        System.out.println("Before MasterView1Iterator ShiftModeCode="+ vo.ensureVariableManager().getVariableValue("ShiftModeCode"));
        vo.ensureVariableManager().setVariableValue("DateFrom", dateFrom);
        vo.ensureVariableManager().setVariableValue("DateTo", dateTo);
        vo.ensureVariableManager().setVariableValue("ShiftModeCode", shiftModeC);
        vo.ensureVariableManager().setVariableValue("TerminalCode", terminalCode);
        vo.executeQuery();
        System.out.println("MasterView1Iterator vo.getEstimatedRowCount()="+ vo.getEstimatedRowCount());
        DCIteratorBinding dc1 = (DCIteratorBinding)evaluteEL("#{bindings.DetailView1Iterator}");
        ViewObject vo1 = dc1.getViewObject();
        System.out.println("Before DetailView1Iterator vo1.getEstimatedRowCount()="+ vo1.getEstimatedRowCount());
        System.out.println("Before DetailView1Iterator ShiftModeCode="+ vo1.ensureVariableManager().getVariableValue("ShiftModeCode"));
        vo1.ensureVariableManager().setVariableValue("DateFrom", dateFrom);
        vo1.ensureVariableManager().setVariableValue("DateTo", dateTo);
        vo1.ensureVariableManager().setVariableValue("ShiftModeCode", shiftModeC);
        vo1.ensureVariableManager().setVariableValue("TerminalCode", terminalCode);
        vo1.executeQuery();
        System.out.println("after DetailView1Iterator vo1.getEstimatedRowCount()="+ vo1.getEstimatedRowCount());
5. What's wrong in my implementation? I don't have no problem to implement such a tree table if using simple master-detail tables view object, but now I have to use such 2 view objects using complex SQL for my requirement and variable bindings are necessary for detail view object although I also think a bit strange by myself.

Hi Frank,
Thank you and it can work.
public void setLowHighSalaryRangeForDetailEmployeesAccessorViewObject(Number lowSalary,
                                                                          Number highSalary) {
        Row r = getCurrentRow();
        if (r != null) {
            RowSet rs = (RowSet)r.getAttribute("EmpView");
            if (rs != null) {
                ViewObject accessorVO = rs.getViewObject();
                accessorVO.setNamedWhereClauseParam("LowSalary", lowSalary);
                accessorVO.setNamedWhereClauseParam("HighSalary", highSalary);
            executeQuery();
but I have a quesiton in this way. in code snippet, it is first getting current row of current master VO to determine if update variables value of detail VO. in my case, current row is possibly null after executeQuery() of master VO and I have to change current row manually like below.
any idea?
            DCIteratorBinding dc = (DCIteratorBinding)ADFUtil.evaluateEL("#{bindings.SSForecastSourceBlockView1Iterator}");
            ViewObject vo = dc.getViewObject();
            vo.ensureVariableManager().setVariableValue("DateFrom", dateFrom);
            vo.ensureVariableManager().setVariableValue("DateTo", dateTo);
            vo.ensureVariableManager().setVariableValue("ShiftModeCode", shiftModeC);
            vo.ensureVariableManager().setVariableValue("TerminalCode", terminalCode);
            vo.executeQuery();
            vo.setCurrentRowAtRangeIndex(0);
            ((SSForecastSourceBlockViewImpl)vo).synchornizeAccessorVOVariableValues();

Sql queries are equal

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