Count number of rows for TWO QUERIES USING MINUS OPERATOR
I have the following piece of sql, i would like to know how could i programatically using plsql count the number of rows returned by the following statement. I know that %ROWCOUNT returns the rowcount for the last execute INSERT, UPDATE, DELETE and SELECT INTO statement. Any help is much appreciated thanks.
select *
from admt1m4.usr@tcprod u
where u.authoriztion = 'Omf99FullUsage'
and u.obid in (select right from admt1m4.usrtogrp@TCPROD ug where ug.left in
(select obid from admt1m4.usrgrp@tcprod g
where g.participant not in ('super user grp', 't1_WbsPSAnalystGrp')))
and u.activeuser = '+'
MINUS
select *
from admt1m4.usr@TCPROD u
where u.authoriztion = 'Omf99FullUsage'
and u.obid in (select right from admt1m4.usrtogrp@TCPROD ug
where ug.usrgrpname in ('super user grp', 't1_WbsPSAnalystGrp'))
and u.activeuser = '+'
Hi,
Have you tried
SELECT COUNT (1) cnt
FROM (SELECT *
FROM admt1m4.usr@tcprod u
WHERE u.authoriztion = 'Omf99FullUsage'
AND u.obid IN (
SELECT RIGHT
FROM admt1m4.usrtogrp@tcprod ug
WHERE ug.LEFT IN (
SELECT obid
FROM admt1m4.usrgrp@tcprod g
WHERE g.participant NOT IN
('super user grp', 't1_WbsPSAnalystGrp')))
AND u.activeuser = '+'
MINUS
SELECT *
FROM admt1m4.usr@tcprod u
WHERE u.authoriztion = 'Omf99FullUsage'
AND u.obid IN (
SELECT RIGHT
FROM admt1m4.usrtogrp@tcprod ug
WHERE ug.usrgrpname IN
('super user grp', 't1_WbsPSAnalystGrp'))
AND u.activeuser = '+')or your requirement is something else...
*009*
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Can I use same result set for two queries?
Hi,
Can I use the same result set for two queries?
For example:
ResultSet rs = null;
rs = ps.executeQuery(query1);
while (rs.next()) {
rs = ps.executeQuery(query2);
while (rs.next()) {
Is it OK to use? or Is there any preformance issues?
Appreciate your help.
Thanks in advance.
Prasad VagoluSure. You have a variable of ResultSet type. First you create a ResultSet and assign it to that variable. Then later you create another ResultSet and assign it to that same variable. Assigning an object reference to a variable takes essentially no time, and at any rate it isn't any faster to assign it to a different variable. Also, no matter whether you use one variable or two, you are still creating two ResultSets.
However, you really should be closing your ResultSets after you finish using them. That's nothing to do with the assigning-to-a-variable question. -
Gather_Plan_Statistics + DBMS_XPLAN A-rows for parallel queries
Looks like gather_plan_statistics + dbms_xplan displays incorrect A-rows for parallel queries. Is there any way to get the correct A-rows for a parallel query?
Version details:
Oracle Database 10g Enterprise Edition Release 10.2.0.3.0 - 64bi on HPUX
Create test tables:
-- Account table
create table test_tacprof
parallel (degree 2) as
select object_id ac_nr,
object_name ac_na
from all_objects;
alter table test_tacprof add constraint test_tacprof_pk primary key (ac_nr);
-- Account revenue table
create table test_taccrev
parallel (degree 2) as
select apf.ac_nr ac_nr,
fiv.r tm_prd,
apf.ac_nr * fiv.r ac_rev
from (select rownum r from all_objects where rownum <= 5) fiv,
test_tacprof apf;
alter table test_taccrev add constraint test_taccrev_pk primary key (ac_nr, tm_prd);
-- Table to hold query results
create table test_4accrev as
select apf.ac_nr, apf.ac_na, rev.tm_prd, rev.ac_rev
from test_taccrev rev,
test_tacprof apf
where 1=2;
Run query with parallel dml/query disabled:
ALTER SESSION DISABLE PARALLEL QUERY;
ALTER SESSION DISABLE PARALLEL DML;
INSERT INTO test_4accrev
SELECT /*+ gather_plan_statistics */
apf.ac_nr,
apf.ac_na,
rev.tm_prd,
rev.ac_rev
FROM test_taccrev rev, test_tacprof apf
WHERE apf.ac_nr = rev.ac_nr AND tm_prd = 4;
SELECT *
FROM TABLE (DBMS_XPLAN.display_cursor (NULL, NULL, 'ALLSTATS LAST'));
| Id | Operation | Name | Starts | E-Rows | A-Rows | A-Time | Buffers | OMem | 1Mem | Use
|* 1 | HASH JOIN | | 1 | 30442 | 23412 |00:00:00.27 | 772 | 1810K| 1380K| 2949K (0)|
| 2 | TABLE ACCESS FULL| TEST_TACPROF | 1 | 26050 | 23412 |00:00:00.01 | 258 | | |
|* 3 | TABLE ACCESS FULL| TEST_TACCREV | 1 | 30441 | 23412 |00:00:00.03 | 514 | | |
ROLLBACK ;
A-rows are correctly reported with no parallel.
Run query with parallel dml/query enabled:
ALTER SESSION enable PARALLEL QUERY;
alter session enable parallel dml;
insert into test_4accrev
select /*+ gather_plan_statistics */ apf.ac_nr, apf.ac_na, rev.tm_prd, rev.ac_rev
from test_taccrev rev,
test_tacprof apf
where apf.ac_nr = rev.ac_nr
and tm_prd = 4;
select * from table(dbms_xplan.display_cursor(null,null,'ALLSTATS LAST'));
| Id | Operation | Name | Starts | E-Rows | A-Rows | A-Time | Buffers | OMem | 1Mem | Used-M
| 1 | PX COORDINATOR | | 1 | | 23412 |00:00:00.79 | 6 | | | |
| 2 | PX SEND QC (RANDOM) | :TQ10001 | 0 | 30442 | 0 |00:00:00.01 | 0 | | | |
|* 3 | HASH JOIN | | 0 | 30442 | 0 |00:00:00.01 | 0 | 2825K| 1131K| |
| 4 | PX BLOCK ITERATOR | | 0 | 30441 | 0 |00:00:00.01 | 0 | | | |
|* 5 | TABLE ACCESS FULL | TEST_TACCREV | 0 | 30441 | 0 |00:00:00.01 | 0 | | |
| 6 | BUFFER SORT | | 0 | | 0 |00:00:00.01 | 0 | 73728 | 73728 | |
| 7 | PX RECEIVE | | 0 | 26050 | 0 |00:00:00.01 | 0 | | | |
| 8 | PX SEND BROADCAST | :TQ10000 | 0 | 26050 | 0 |00:00:00.01 | 0 | | | |
| 9 | PX BLOCK ITERATOR | | 0 | 26050 | 0 |00:00:00.01 | 0 | | | |
|* 10 | TABLE ACCESS FULL| TEST_TACPROF | 0 | 26050 | 0 |00:00:00.01 | 0 | | | |
rollback;
A-rows are zero execpt for final step.I'm sorry for posting following long test case.
But it's the most convenient way to explain something. :-)
Here is my test case, which is quite similar to yours.
Note on the difference between "parallel select" and "parallel dml(insert here)".
(I know that Oracle implemented psc(parallel single cursor) model in 10g, but the details of the implementation is quite in mystery as Jonathan said... )
SQL> select * from v$version;
BANNER
Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - Prod
PL/SQL Release 10.2.0.1.0 - Production
CORE 10.2.0.1.0 Production
TNS for 32-bit Windows: Version 10.2.0.1.0 - Production
NLSRTL Version 10.2.0.1.0 - Production
SQL>
SQL> alter system flush shared_pool;
System altered.
SQL>
SQL> alter table t parallel 4;
Table altered.
SQL>
SQL> select /*+ gather_plan_statistics */ count(*) from t t1, t t2
2 where t1.c1 = t2.c1 and rownum <= 1000
3 order by t1.c2;
COUNT(*)
1000
SQL>
SQL> select sql_id from v$sqlarea
where sql_text like 'select /*+ gather_plan_statistics */ count(*) from t t1, t t2%';
SQL_ID
bx61bkyh9ffb6
SQL>
SQL> select * from table(dbms_xplan.display_cursor('&sql_id',null,'allstats last'));
Enter value for sql_id: bx61bkyh9ffb6
PLAN_TABLE_OUTPUT
SQL_ID bx61bkyh9ffb6, child number 0 <-- Cooridnator and slaves shared the cursor
select /*+ gather_plan_statistics */ count(*) from t t1, t t2 where t1.c1 = t2.c
1 and rownum <= 1000 order by t1.c2
Plan hash value: 3015647771
PLAN_TABLE_OUTPUT
| Id | Operation | Name | Starts | E-Rows | A-Rows | A-Time | Buffers | OMem | 1Mem | Used-Mem |
| 1 | SORT AGGREGATE | | 1 | 1 | 1 |00:00:00.62 | 6 | | | |
|* 2 | COUNT STOPKEY | | 1 | | 1000 |00:00:00.62 | 6 | | | |
| 3 | PX COORDINATOR | | 1 | | 1000 |00:00:00.50 | 6 | | | |
| 4 | PX SEND QC (RANDOM) | :TQ10002 | 0 | 16M| 0 |00:00:00.01 | 0 | | | |
|* 5 | COUNT STOPKEY | | 0 | | 0 |00:00:00.01 | 0 | | | |
|* 6 | HASH JOIN BUFFERED | | 0 | 16M| 0 |00:00:00.01 | 0 | 1285K| 1285K| 717K (0)|
| 7 | PX RECEIVE | | 0 | 10000 | 0 |00:00:00.01 | 0 | | | |
| 8 | PX SEND HASH | :TQ10000 | 0 | 10000 | 0 |00:00:00.01 | 0 | | | |
| 9 | PX BLOCK ITERATOR | | 0 | 10000 | 0 |00:00:00.01 | 0 | | | |
|* 10 | TABLE ACCESS FULL| T | 0 | 10000 | 0 |00:00:00.01 | 0 | | | |
| 11 | PX RECEIVE | | 0 | 10000 | 0 |00:00:00.01 | 0 | | | |
| 12 | PX SEND HASH | :TQ10001 | 0 | 10000 | 0 |00:00:00.01 | 0 | | | |
| 13 | PX BLOCK ITERATOR | | 0 | 10000 | 0 |00:00:00.01 | 0 | | | |
|* 14 | TABLE ACCESS FULL| T | 0 | 10000 | 0 |00:00:00.01 | 0 | | | |
38 rows selected.
SQL>
SQL> select sql_id, child_number, executions, px_servers_executions
2 from v$sql where sql_id = '&sql_id';
SQL_ID CHILD_NUMBER EXECUTIONS
PX_SERVERS_EXECUTIONS
bx61bkyh9ffb6 0 1
8
SQL>
SQL> insert /*+ gather_plan_statistics */ into t select * from t;
10000 rows created.
SQL>
SQL> select sql_id from v$sqlarea
where sql_text like 'insert /*+ gather_plan_statistics */ into t select * from t%';
SQL_ID
9dkmu9bdhg5h0
SQL>
SQL> select * from table(dbms_xplan.display_cursor('&sql_id', null, 'allstats last'));
Enter value for sql_id: 9dkmu9bdhg5h0
PLAN_TABLE_OUTPUT
SQL_ID 9dkmu9bdhg5h0, child number 0 <-- Coordinator Cursor
insert /*+ gather_plan_statistics */ into t select * from t
Plan hash value: 3050126167
| Id | Operation | Name | Starts | E-Rows | A-Rows | A-Time | Buffers |
| 1 | PX COORDINATOR | | 1 | | 10000 |00:00:00.20 | 3 |
| 2 | PX SEND QC (RANDOM)| :TQ10000 | 0 | 10000 | 0 |00:00:00.01 | 0 |
| 3 | PX BLOCK ITERATOR | | 0 | 10000 | 0 |00:00:00.01 | 0 |
|* 4 | TABLE ACCESS FULL| T | 0 | 10000 | 0 |00:00:00.01 | 0 |
SQL_ID 9dkmu9bdhg5h0, child number 1 <-- Slave(s)
insert /*+ gather_plan_statistics */ into t select * from t
PLAN_TABLE_OUTPUT
Plan hash value: 3050126167
| Id | Operation | Name | Starts | E-Rows | A-Rows | A-Time | Buffers |
| 1 | PX COORDINATOR | | 0 | | 0 |00:00:00.01 | 0 |
| 2 | PX SEND QC (RANDOM)| :TQ10000 | 0 | 10000 | 0 |00:00:00.01 | 0 |
| 3 | PX BLOCK ITERATOR | | 1 | 10000 | 2628 |00:00:00.20 | 16 |
|* 4 | TABLE ACCESS FULL| T | 4 | 10000 | 2628 |00:00:00.02 | 16 |
SQL>
SQL> select sql_id, child_number, executions, px_servers_executions
2 from v$sql where sql_id = '&sql_id'; <-- 2 child cursors here
SQL_ID CHILD_NUMBER EXECUTIONS
PX_SERVERS_EXECUTIONS
9dkmu9bdhg5h0 0 1
0
9dkmu9bdhg5h0 1 0
4
SQL>
SQL> set serveroutput on
-- check mismatch
SQL> exec print_table('select * from v$sql_shared_cursor where sql_id = ''&sql_id''');
Enter value for sql_id: 9dkmu9bdhg5h0
SQL_ID : 9dkmu9bdhg5h0
ADDRESS : 6AD85A70
CHILD_ADDRESS : 6BA596A8
CHILD_NUMBER : 0
UNBOUND_CURSOR : N
SQL_TYPE_MISMATCH : N
OPTIMIZER_MISMATCH : N
OUTLINE_MISMATCH : N
STATS_ROW_MISMATCH : N
LITERAL_MISMATCH : N
SEC_DEPTH_MISMATCH : N
EXPLAIN_PLAN_CURSOR : N
BUFFERED_DML_MISMATCH : N
PDML_ENV_MISMATCH : N
INST_DRTLD_MISMATCH : N
SLAVE_QC_MISMATCH : N
TYPECHECK_MISMATCH : N
AUTH_CHECK_MISMATCH : N
BIND_MISMATCH : N
DESCRIBE_MISMATCH : N
LANGUAGE_MISMATCH : N
TRANSLATION_MISMATCH : N
ROW_LEVEL_SEC_MISMATCH : N
INSUFF_PRIVS : N
INSUFF_PRIVS_REM : N
REMOTE_TRANS_MISMATCH : N
LOGMINER_SESSION_MISMATCH : N
INCOMP_LTRL_MISMATCH : N
OVERLAP_TIME_MISMATCH : N
SQL_REDIRECT_MISMATCH : N
MV_QUERY_GEN_MISMATCH : N
USER_BIND_PEEK_MISMATCH : N
TYPCHK_DEP_MISMATCH : N
NO_TRIGGER_MISMATCH : N
FLASHBACK_CURSOR : N
ANYDATA_TRANSFORMATION : N
INCOMPLETE_CURSOR : N
TOP_LEVEL_RPI_CURSOR : N
DIFFERENT_LONG_LENGTH : N
LOGICAL_STANDBY_APPLY : N
DIFF_CALL_DURN : N
BIND_UACS_DIFF : N
PLSQL_CMP_SWITCHS_DIFF : N
CURSOR_PARTS_MISMATCH : N
STB_OBJECT_MISMATCH : N
ROW_SHIP_MISMATCH : N
PQ_SLAVE_MISMATCH : N
TOP_LEVEL_DDL_MISMATCH : N
MULTI_PX_MISMATCH : N
BIND_PEEKED_PQ_MISMATCH : N
MV_REWRITE_MISMATCH : N
ROLL_INVALID_MISMATCH : N
OPTIMIZER_MODE_MISMATCH : N
PX_MISMATCH : N
MV_STALEOBJ_MISMATCH : N
FLASHBACK_TABLE_MISMATCH : N
LITREP_COMP_MISMATCH : N
SQL_ID : 9dkmu9bdhg5h0
ADDRESS : 6AD85A70
CHILD_ADDRESS : 6B10AA00
CHILD_NUMBER : 1
UNBOUND_CURSOR : N
SQL_TYPE_MISMATCH : N
OPTIMIZER_MISMATCH : N
OUTLINE_MISMATCH : N
STATS_ROW_MISMATCH : N
LITERAL_MISMATCH : N
SEC_DEPTH_MISMATCH : N
EXPLAIN_PLAN_CURSOR : N
BUFFERED_DML_MISMATCH : N
PDML_ENV_MISMATCH : N
INST_DRTLD_MISMATCH : N
SLAVE_QC_MISMATCH : N
TYPECHECK_MISMATCH : N
AUTH_CHECK_MISMATCH : N
BIND_MISMATCH : N
DESCRIBE_MISMATCH : N
LANGUAGE_MISMATCH : N
TRANSLATION_MISMATCH : N
ROW_LEVEL_SEC_MISMATCH : N
INSUFF_PRIVS : N
INSUFF_PRIVS_REM : N
REMOTE_TRANS_MISMATCH : N
LOGMINER_SESSION_MISMATCH : N
INCOMP_LTRL_MISMATCH : N
OVERLAP_TIME_MISMATCH : N
SQL_REDIRECT_MISMATCH : N
MV_QUERY_GEN_MISMATCH : N
USER_BIND_PEEK_MISMATCH : N
TYPCHK_DEP_MISMATCH : N
NO_TRIGGER_MISMATCH : N
FLASHBACK_CURSOR : N
ANYDATA_TRANSFORMATION : N
INCOMPLETE_CURSOR : N
TOP_LEVEL_RPI_CURSOR : N
DIFFERENT_LONG_LENGTH : N
LOGICAL_STANDBY_APPLY : N
DIFF_CALL_DURN : Y <-- Mismatch here. diff_call_durn
BIND_UACS_DIFF : N
PLSQL_CMP_SWITCHS_DIFF : N
CURSOR_PARTS_MISMATCH : N
STB_OBJECT_MISMATCH : N
ROW_SHIP_MISMATCH : N
PQ_SLAVE_MISMATCH : N
TOP_LEVEL_DDL_MISMATCH : N
MULTI_PX_MISMATCH : N
BIND_PEEKED_PQ_MISMATCH : N
MV_REWRITE_MISMATCH : N
ROLL_INVALID_MISMATCH : N
OPTIMIZER_MODE_MISMATCH : N
PX_MISMATCH : N
MV_STALEOBJ_MISMATCH : N
FLASHBACK_TABLE_MISMATCH : N
LITREP_COMP_MISMATCH : N
PL/SQL procedure successfully completed. -
Need help to count number of rows and display in file
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and
http://docs.oracle.com/cd/E28280_01/bi.1111/e10544/appsql.htm#CHDCDIDA
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How to count number of rows in table
can I get number of row in table except Count(*) in pl/sql
is there any other wayAlso posted and answered here
how to count number of rows in table
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Hi!
1. How can you through ABAP and select statements count the number of rows in one table?
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<b>data: itab type standard table of bkpf initial size 0.
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table a
=========
id (number),name varchar2,dt date
10,'aaa','01-01-2006'
11,'bbb','01-01-2007'
table b
======================
id varchar2,name varchar2,dt varchar2
'10','aaa','01-01-2006'
is it possible to find out which row is not in table b but it is in table a
i have tried out using minus operator but it return error (ora-01790-expression must have same datatype.ora-01790-expression must have same datatypeAnd what is it precisely is it about that error message which is confsuing you?
SQL> select 1 from dual
2 minus
3 select dummy from dual
4 /
select 1 from dual
ERROR at line 1:
ORA-01790: expression must have same datatype as corresponding expression
SQL> select to_char(1) from dual
2 minus
3 select dummy from dual
4 /
T
1
SQL> Cheers, APC -
Count number of rows from oracle and sql database and generate a report
Hi All,
Can someone help me in writing a java program for the following scenario?
1. Read the number of rows available from oracle table and print the total row count in a Report.txt text file.
2. Read the number of rows inserted in a sql database (after a specific process-just an information) and print the total row count in the same text file Report.txt .
3. Read the Error Log file (which is generated after a specific process say it has success and failed report for each iterations) and print the number of success and number of failure in the same text file Report.txt .
I need the final Report.txt file in the following format:
1. Oracle table <table name> has 500000 rows.
2. After completion of the specific process 300000 rows were added to SQL table <table name>
Error Log Report:
300000 successfull entries and 200000 failed entries were found from the Error Log file.Thanks for your immediate reply.
I'm just a beginner in java so if i make any mistake please correct and excuse me. :)
This is the code i have for connecting to two different database.
package connectDatabase;
* @author
import java.sql.*;
public class ConnectTo
public void OracleDB()
Connection dbconn;
try {
DriverManager.registerDriver(new oracle.jdbc.driver.OracleDriver());
String connString="jdbc:oracle:thin:@SYS_IP:1521:oracl";
dbconn = DriverManager.getConnection(connString, "uname","pwd" );
catch(SQLException sqlex)
sqlex.printStackTrace();
catch(Exception excp)
excp.printStackTrace();
public void SqlDB()
Connection conn;
try {
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
String url = "jdbc:odbc:connectDB";
conn = DriverManager.getConnection(url,"uname","pwd");
catch (Exception e)
System.err.println("An Exception occured! " +e.getMessage());
}I'm just codding the second half which is for connecting to oracle databse and calculates the row count and displayes in the command prompt.
then connects to SQL database and counts successfull insert in the table.(row count) and displayes on the command prompt.
can you simplify the above code so that i can call the oracleDB() method and SqlDB() method seperately from another calss file using the object of this class?
I'm ok if the report can be seen in a command prompt. FInally i need to calculate the success and failure count from the log file. will let you know once i'm done with codding. -
How To Restrict Number Of Rows For Multiple Group In Report Output
Hi ,
I have a requirement to restrict number of rows in report output.I have three different group , if i use same no of rows to restrict then output is as expected but if i want Deduction group should have 7 rows , earning should have 5 rows and Tax group have 3 rows in report output then XML tag is not working.
Below is the XML tag i am using -
First i have declare the variable to restrict the rows -
<xsl:variable name="lpp" select="number(7)"/>
<xsl:variable name="lpp1" select="number(5)"/>
<xsl:variable name="lpp2" select="number(3)"/>
For Each -
<?for-each:PAYSLIP?>
<xsl:variable xdofo:ctx="incontext" name="DedLines" select=".//AC_DEDUCTIONS"/>
<xsl:variable xdofo:ctx="incontext" name="EarLines" select=".//AC_EARNINGS[ELEMENT_CLASSIFICATION!='Taxable Benefits']"/>
<xsl:variable xdofo:ctx="incontext" name="EarTaxLines" select=".//AC_EARNINGS[ELEMENT_CLASSIFICATION='Taxable Benefits']>
<?for-each:$DedLines?><?if:(position()-1) mod $lpp=0?> <xsl:variable name="start" xdofo:ctx="incontext" select="position()"/>
<?if:(position()-1) mod $lpp1=0?><xsl:variable name="start1" xdofo:ctx="incontext" select="position()"/
<?if:(position()-1) mod $lpp2=0?><xsl:variable name="start2" xdofo:ctx="incontext" select="position()"/>
Report output is tabular form (one page has two column - Earning and Deduction ) . Tax group comes below earning group.
Deduction Group -
<?for-each-group:$DedLines;./REPORTING_NAME?><?if:position()>=$start and position()<$start+$lpp?>
<?REPORTING_NAME?>
<?end if?><?end for-each-group?>
Earning Group -
<?for-each-group:$EarLines;./REPORTING_NAME?><?if:position()>=$start1 and position()<$start1+$lpp1?>
<?REPORTING_NAME?>
<?end if?><?end for-each-group?>
Tax Group -
<?for-each-group:$EarTaxLines;./REPORTING_NAME?><?if:position()>=$start2 and position()<$start2+$lpp2?>
<?REPORTING_NAME?>
<?end if?><?end for-each-group?>
Please let me know in case additional detail is require.
Thanks in Advance.
Thanks,
Harsh
Edited by: Harsh.rkg on Jan 14, 2013 9:43 PMvariable lpp2 is declare to restrict EarTaxLines -
<xsl:variable name="lpp2" select="number(2)"/>
This will help to restrict the no of rows on one page , if we have more then two tax benefits line then layout will roll over to continuation page.
As part of report output my expectation is if i restrict Earning , Deduction and Tax benefits to same no of line for example - variable lpp ,lpp1 and lpp2 have same value "number(2)" , we can see the layout is continue on next page (restrict every group can have max two lines) .This is the reason we have 4 header grid , deduction and Tax Benefit lines are rolled over to continuation page .But if we restrict different value for each variable then continuation page layout is missing .
When we tried for <xsl:variable name="lpp2" select="number(3)"/> value continuation page layout is not getting generate for both employee number . -
How to add the Row count(number of rows in table) in the table header?
Hi,
I'm having a table. This table is viewed when i click on a search button.
<b>On the table header it should dynamically display the number of rows in the table, i.e., the row count.</b>
How to do this? could any one explain me with the detailed procedure to achieve this.
Thanks & Regards,
SureshIf you want to show a localized text in the table header, you should use the <b>Message Pool</b> to create a (parameterized) message "tableHeaderText" like "There are table entries".
Next, create a context attribute "tableHeaderText" of type "string" and bind the "text" property of the table header Caption UI element to this attribute.
Whenever the table data has changed (e.g. at the end of the supply function for the table's data source node), update the header text:
int numRows = wdContext.node<TableDataSourceNode>().size();
String text = wdComponentAPI.getTextAccessor().getText
IMessage<ComponentName>.TABLE_HEADER_TEXT,
new Object[] { String.valueOf(numRows) }
wdContext.currentContextElement().setTableHeaderText(text);
Maybe you want to provide a separate message for the case that there are no entries.
Alternatively, you can make the attribute calculated and return the header text in the attribute getter.
Armin -
Count number of rows in a table
Hi,
I have a requirement. I want to frame a SQL, which takes schema name as input and returns tables owned by that schema and number of rows inside a particular table.
A Sample output:
===========
Table No. of Rows
~~~~ ~~~~~~~~
A 123
B 126
C 234
.Can somebody help me in framing a query for the same.
Regards,hoek wrote:
But you could use this script:
http://laurentschneider.com/wordpress/2007/04/how-do-i-store-the-counts-of-all-tables.html
Laurent's solution most likely was published before IOT. Anyway, IOT ovwerflow tables must be excluded. Otherwise:
SQL> select table_name,
2 to_number(
3 extractvalue(
4 xmltype(
5 dbms_xmlgen.getxml('select count(*) c from '||owner || '.' || table_name)),'/ROWSET/ROW/C')) cou
6 from dba_tables
7 where owner = 'OE'
8 /
ERROR:
ORA-19202: Error occurred in XML processing
ORA-25191: cannot reference overflow table of an index-organized table
ORA-06512: at "SYS.DBMS_XMLGEN", line 176
ORA-06512: at line 1
no rows selected
SQL> select table_name,
2 to_number(
3 extractvalue(
4 xmltype(
5 dbms_xmlgen.getxml('select count(*) c from '||owner || '.' || table_name)),'/ROWSET/ROW/C')) count
6 from dba_tables
7 where owner = 'OE'
8 and nvl(iot_type,'X') != 'IOT_OVERFLOW'
9 /
TABLE_NAME COUNT
CUSTOMERS 319
WAREHOUSES 9
ORDER_ITEMS 665
ORDERS 105
INVENTORIES 1112
PRODUCT_INFORMATION 288
PRODUCT_DESCRIPTIONS 8640
PROMOTIONS 2
PRODUCT_REF_LIST_NESTEDTAB 288
SUBCATEGORY_REF_LIST_NESTEDTAB 21
10 rows selected.
SQL> SY.
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