Delete all rows
Hi All
I'm using jd 11.1.2.0
I have a table which displays some rows in a table. I want to delete all rows in the table when user presses the Delete button
Please tel me how to do this
Thaks
try with this method
public void deleteAll(){
// 1. Access the binding container
DCBindingContainer bc = (DCBindingContainer)getBindings();
// 2. Find a named iterator binding
DCIteratorBinding iter =
(DCIteratorBinding)bc.findIteratorBinding("YourIteratorName");
//4. Get the RowSetIterator Object
RowSetIterator rsi = iter.getRowSetIterator();
rsi.reset();
//delete all rows
while (rsi.hasNext())
rsi.removeCurrentRow();
rsi.next();
}
Similar Messages
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How to delete all rows data from database
Hello All.
I have a database username 'abc'. This database contain 123 tables & have many data.
I want to empty all the database. Is it possible that clear all the database with a single query.
if yes then kindly tell me about the query .
Thanks
DiamondKeep in mind that you cannot rollback the truncate command.
Once you truncate a table all of it's data AND statistics are gone.
If you do not want to use PL/SQL to delete all rows you can generate a script by SQL
SCOTT@ORCL> SELECT ' TRUNCATE TABLE '|| TABLE_NAME||';' FROM USER_TABLES;
'TRUNCATETABLE'||TABLE_NAME||';'
TRUNCATE TABLE BONUS;
TRUNCATE TABLE SALGRADE;
TRUNCATE TABLE DEPT_LOV;
TRUNCATE TABLE TITLE;
TRUNCATE TABLE TEST_DATE;
TRUNCATE TABLE DEPT;
TRUNCATE TABLE REP;
TRUNCATE TABLE REP_PARAM;
TRUNCATE TABLE EMP;
10 rows selected.
SCOTT@ORCL> SELECT 'DELETE FROM '|| TABLE_NAME||';' FROM USER_TABLES;
'DELETEFROM'||TABLE_NAME||';'
DELETE FROM BONUS;
DELETE FROM SALGRADE;
DELETE FROM DEPT_LOV;
DELETE FROM TITLE;
DELETE FROM TEST_DATE;
DELETE FROM DEPT;
DELETE FROM REP;
DELETE FROM REP_PARAM;
DELETE FROM EMP;
10 rows selected.
SCOTT@ORCL>You can save the output in a .sql file and run it.
Regards,
Tony -
I have read two articles how to use sql adapter with delete.
http://btsguru.blogspot.se/2011/10/wcf-sql-adapter-table-operations.html
http://social.technet.microsoft.com/wiki/contents/articles/29146.biztalk-server-2013-crud-operation-with-wcf-sql-adapter-and-correlation.aspx?wa=wsignin1.0
Is it a way to delete all rows in a table?
I have tried to send <ns0:Rows>*</ns0:Rows> with no luck.
ChallanI'm not expert in Biztalk but one of the options to call stored procedure that contains the delete script:
http://geekswithblogs.net/StuartBrierley/archive/2011/10/19/biztalk-server-2010---using-the-wcf-sql-adapter-to-make.aspx
Sql Delete all rows from table Script:
DELETE FROM table_name;
or
TRUNCATE TABLE mytable;
Trucnate vs Delete:
http://www.mssqltips.com/sqlservertip/1080/deleting-data-in-sql-server-with-truncate-vs-delete-commands/
Fouad Roumieh -
Delete all rows except 10 random rows
Hi,
how can I delete all rows from table JOBS except 10 random rows?
Someone asked it before (not here..): http://stackoverflow.com/questions/10820105/t-sql-delete-except-top-1
but I didn't understand the answer, and I don't think it will work in PL/SQL.
If the answer in StackOverflow does works in PL/SQL, I will glad if someone explains me with better example,
If the answer in StackOverflow does'nt work in PL/SQL, I will glad if someone gives me an example.
thanks!Actually I found a problem in this solution.
delete from jobs where rowid not in (select rowid from jobs where rownum<=10) ;I used the above code to delete all rows except 10 in JOB_HISTORY table, but for some reason the rows that were chosen were only in the range in which (144<=EMPLOYEE_ID<=146).
I tried this several times and always i stayed with rows in this range.
Here are the queries:
SQL> select employee_id from job_history;
EMPLOYEE_ID
144
144
144
144
144
145
145
146
146
146
146
146
146
146
147
147
147
147
149
149
149
156
156
156
156
156
156
156
158
158
158
158
158
158
158
158
159
159
159
165
165
165
171
171
171
171
46 rows selected
SQL> delete from job_history where rowid not in (select rowid from job_history where rownum <= 15);
31 rows deleted
SQL> select employee_id from job_history;
EMPLOYEE_ID
144
144
144
144
144
145
145
146
146
146
146
146
146
146
147
15 rows selected
SQL>
Glad if someone can explain me why I get this result.
Thanks
Edited by: 998093 on 05:01 05/04/2013 -
Delete command is not deleting all rows
Hi All,
Database version 10.2.0.2
Delete command is not deleting all rows and deleting some subset of rows which it should delete, ever time I delete and do the roll back, next time it will delete some random rows, count is different everytime with in the range but not complete in anyway. see the following -
select count(*) from test where evt_id in (select evt_id from test1);
COUNT(*)
27105
delete from test where evt_id in (select evt_id from test1);
16045 rows deleted.
select count(*) from test where evt_id in (select evt_id from test1);
11060
rollback;
Againg the same procedure -
select count(*) from test where evt_id in (select evt_id from test1);
COUNT(*)
27105
delete from test where evt_id in (select evt_id from test1);
14320 rows deleted.
select count(*) from test where evt_id in (select evt_id from test1);
COUNT(*)
12785
why its not deleting all the 27k rows in one shot? Is there any bug related to that?
Thanks
AbhinavOdd that what looked like identical statements produced different results, both the counts and the deletes. The most likely cause of that is your data is changing - as Fahd suggested perhaps a simultaneous load taking place.
The delete issue is probably not due to a bug. Possible but unlikely.
If any evt_id values are NULL they won't be deleted with the subquery - a NULL in test.evt_id will never match a NULL in test1.evt_id.
Have you tried alternative subqueries - a correlated EXISTS subquery for instance? -
JTable problem when deleting all rows and reinserting data,
Hi,
I have a JTable with an AbstractModelTable.
Some cells in the JTable have a custom cell editor. I am using
the cell editor that accepts only numeric values as explained in
the JTable tutorial (WholeNumberField).
- The JTable gets filled by choosing a value from a JList
for example:
1- choose a customer name from the customer JList
2- gets the customer order (database)
3- fills the Jtable with the customer data.
- When a customer is chosen from the Jlist I call a function
inside my table model. (This function removes all rows, clears the vector holding the data and calls fireTableRowsDeleted (firstRow, lastRow));
- Then I fill up the new data for this customer.
All of this works fine, except if I have entered a new value inside
one of the cell that has a customed cellEditor (ex: the Ordered column).
for example : user enters number 20 in the "ordered" column for customer A. Then changes his mind and chooses customer B from the JList. So the JTable gets cleared and refilled with the data of Customer B but the column "ordered" still has the value '20'
I would really appreciate any help...
ThanksDon't know is this will work, but try the following before updating the table:
if (table.isEditing())
table.removeEditor();Also, why do two TableModelEvent's..one for all getting deleted, one for the new filling. You could do one fireTableDataChanged after the new data is in. -
Deleting all rows in detached mode hangs application
Hi all,
If we click on Detach button of table and do select all and delete , and click on detach button again (i.e to return to main screen), the screen gets hanged.
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2. Click Detach
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4.Click on Detach button again.
The screen hangs at this point
Is this a bug ? Any workarounds for this issue.
FYI, this behaviour is reproducible in Jdev 11.1.1.4 also
Thanks,
VikasIs this a bug ? Any workarounds for this issue.You've got the perfect test case to take to https://support.oracle.com, who would be able to answer both of those questions.
John -
Delete all rows on VO at one shot
Hi,
I have a VO based on an EO. Now once I get a VO I could see that there are 2 methods:
1. removeCurrentRow()
2. remove()
removeCurrentRow() would delete the current row and also the related row of the table associated with the EO.
Is remove() the methods to remove all the rows linked to the VO or is there any other method. what does remove() do if not deleting the rows at one shot.
Thanks,
Kalyan.<p>
Use this method in your Application Module:
</p>
<p>
<strong><font face="courier new,courier" size="2">public void removeAllRows(){</font></strong>
</p>
<p>
<strong><font face="courier new,courier" size="2"> ViewObject vo = getYourViewObject();</font></strong>
</p>
<p>
<strong><font face="courier new,courier" size="2"> vo.executeQuery();</font></strong>
</p>
<p>
<strong><font face="courier new,courier" size="2"> while(vo.hasNext()){</font></strong>
</p>
<p>
<strong><font face="courier new,courier" size="2"> Row r = vo.next();</font></strong>
</p>
<p>
<strong><font face="courier new,courier" size="2"> r.remove();
</font></strong>
</p>
<p>
<strong><font face="courier new,courier" size="2"> } </font></strong>
</p>
<p>
<strong><font face="courier new,courier" size="2"> getDBTransaction().commit;
</font></strong>
</p>
<p>
<strong><font face="courier new,courier" size="2">}</font></strong>
</p>
<p>
Kuba
</p> -
Multi Row Delelte - Delete all rows
I have a multi row delete button with multi row checkboxes. When I tried to delete the selected rows, actually all rows are deleted. I have a multi row delete process.
Other information:
This tabular form displays all related users for one particular department. The department ID is the primary key in this reference table.
I am using APEX 2.2 and IE as browser. Any one else here know what settings I should set.After review previous thread, I created the following PL/SQL expression for the multi row delete process in the condition field:
FOR I IN 1..APEX_APPLICATION.G_F01.COUNT LOOP
DELETE FROM tbl
WHERE colNM = APEX_APPLICATION.G_F02(APEX_APPLICATION.G_F01(I))
END LOOP;
END;
I also tried htmldb_application.g_f01.count to reference the selected rows. Both of them are not working. Someone, please help, where should I put this PL/SQL expression. I am pretty to APEX.
Thanks. -
How to delete all rows in all tables of a schema in Oracle?
Hi all,
I want to delete all records of all tables of a schema and I think there should be some statement for this but I don't know how?
may you help?
Edited by: user8105261 on Nov 25, 2009 11:06 PMuser8105261 wrote:
Hi all,
I want to delete all records of all tables of a schema and I think there should be some statement for this but I don't know how?
may you help?
Edited by: user8105261 on Nov 25, 2009 11:06 PMA typical way to reset a schema (e.g. to recreate a schema on the test database) is totally different.
1) Drop the user
2) recreate the user including table scripts from
2a) your version control system
2b) from a export dumpfile using the "nodata" option while importing -
Please suggest solution for deletion of all rows in table at a time
Suggest me pl/sql code for a push button in form to delete entire rows in a table.
BEGIN
LOOP
DELETE
FROM mytable(say table name)
WHERE ROWNUM < 20000;
EXIT WHEN SQL%ROWCOUNT = 0;
COMMIT;
END LOOP;
END;
I wrote this code but not deleted .
Execute immediate truncate table <tablename>; this code too not working.
What my need is I dont want to put entire block fields in the form, just I want to put a push button and when I pressed it must delete all rows in a particular table.
That I want to delete all rows form builder runtime not by entering sql.8.0 and then there delete the rows.
thanks in advance
prasanth a.s.to delete all records in a table, if you want to get good performance, then use:
FORMS_DDL('TRUNCATE TABLE your_table_name');
It is better than use DELETE FROM TABLE_NAME. But if you have condition in where clause, then you have to use DELETE FROM ... -
A script to delete all table rows containing a specific text
Hello,
I've tried some old scripts but can't get around to the right solution.
I need a script that will delete all rows in a table that contain a specific single-word text, something like "xxx".
Anyone's got an idea?
ThanksHi,
To remove a row use row.remove() method.
So iterate through table.rows and remove the one matched a condition.
If we talk about condition you have to be more accurate - what do you mean "a row contain a text":
==> 1st cell contains,
==> any cell contains.
Entire row contents is an array of its cells.contents, so your 1st row text is:
rows[0].contents.join(" ") ==> string
Jarek -
Deleting a row from parent table
Dear Guru's
I am having two table with parent - child relationship. My problem is when I am deleting a row from parent table the curresponding child row from child table also should be deleted.
My Primary table 'Employee, EMPID Primary key
Child table 'Privilage' inthis EMPID referencing the EMPID of Employee table
My need is when I am deleting a row from parent table the curresponding child row from child table also should be deleted
I issued the SQL query like,
delete from employee where empid='12345' cascade constraints;
Then it showing me error like,
ERROR at line 1:
ORA-00933: SQL command not properly ended
Please resolve my issue , Its Top urgent
Thanks & Cheers
AntonyChoosing How Foreign Keys Enforce Referential Integrity
Oracle Database allows different types of referential integrity actions to be enforced, as specified with the definition of a FOREIGN KEY constraint:
Prevent Delete or Update of Parent Key The default setting prevents the deletion or update of a parent key if there is a row in the child table that references the key. For example:
CREATE TABLE Emp_tab (
FOREIGN KEY (Deptno) REFERENCES Dept_tab);Delete Child Rows When Parent Key Deleted The ON DELETE CASCADE action allows parent key data that is referenced from the child table to be deleted, but not updated. When data in the parent key is deleted, all rows in the child table that depend on the deleted parent key values are also deleted. To specify this referential action, include the ON DELETE CASCADE option in the definition of the FOREIGN KEY constraint. For example:
CREATE TABLE Emp_tab (
FOREIGN KEY (Deptno) REFERENCES Dept_tab
ON DELETE CASCADE); Set Foreign Keys to Null When Parent Key Deleted The ON DELETE SET NULL action allows data that references the parent key to be deleted, but not updated. When referenced data in the parent key is deleted, all rows in the child table that depend on those parent key values have their foreign keys set to null. To specify this referential action, include the ON DELETE SET NULL option in the definition of the FOREIGN KEY constraint. For example:
CREATE TABLE Emp_tab (
FOREIGN KEY (Deptno) REFERENCES Dept_tab
ON DELETE SET NULL);
SQL> conn scott/tiger
Connected.
SQL> create table ppk ( no number primary key);
Table created.
SQL> begin for inn in 1..10 loop insert into ppk values (inn); end loop; end;
PL/SQL procedure successfully completed.
SQL> create table ffk ( no number references ppk(no));
Table created.
SQL> begin for inn in 1..10 loop insert into ffk values (inn); end loop; end;
PL/SQL procedure successfully completed.
SQL> drop table ppk cascade constraints;
Table dropped.Message was edited by:
user52
Message was edited by:
user52
Message was edited by:
user52 -
Deleting all elements from array and array to spreadsheet string
Hello,
I would like to write a new data file for each "recording" session without closing the VI. My problem is that the last "recording" session's data is at the top of every successive session's text file. I do not want this. I've tried to delete all rows from the array after my array to spreadsheet string function, but I think the problem is somewhere with the shift register and how the array is built. I'm not too familiar with LabView and this aspect of my interface is driving me crazy. Attached is my code and two successive data files. I have not been able to find a solution on these or the LAVA forums. Any help would be appreciated.
Also, I know there is an easier way to write this kind of streaming data, but I need to do it this way for other devices and synchronization purposes.
Attachments:
testsecond.txt 90 KB
test41.vi 80 KB
testfirst.txt 78 KBA few more comments to your code:
Your loop does not have a wait, meaning it spins the empty case millions if times per second, consuming all CPU while not doing anything. Add an indicator to [i] to see.
To clear a 2D array in one case frame, just don't wire the output tunnel and set it to "use default if unwired". You'll get an empty array. No fancy tools needed.
I probably would use an event structure and also protect the data if the save dialog is canceled.
Here's a simple draft that probably requires a bit more work but should show some of the ideas.
You should also
add some protection that the VI cannot consume all available memory if it runs forever.
Create a seperate case to save the data later if the file dialog is cancelled the first time.
LabVIEW Champion . Do more with less code and in less time .
Attachments:
test41MOD.vi 107 KB -
Deleting a row based on a field in the table
Hi,
How do I programatically in Java delete a row in a table based on a specific field in a table? For example, I want to delete a specific row by a zip code.
thank youtry this
public void deleteSpecificRow(){
// 1. Access the binding container
DCBindingContainer bc = (DCBindingContainer)getBindings();
// 2. Find a named iterator binding
DCIteratorBinding iter =
(DCIteratorBinding)bc.findIteratorBinding("YourIteratorName");
//4. create RowSetIterator Object
RowSetIterator rsi = iter.getViewObject().createRowSetIterator(null);
rsi.reset();
//delete all rows
while (rsi.hasNext())
Row current=rsi.next();
//check your condition here, if yes remove the record
current.remove();
rsi.next();
rsi.closeRowSetIterator();
}Edited by: M.Jabr on Nov 24, 2011 5:59 PM
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