All selected 'n' consecutive rows in retrieved in a single query
hello,
I have table T with 50,000 rows
create table T
(student_id number,
class_id number,
quiz_id number,
marks number)
some sample rows like
INSERT INTO T VALUES (1,1, 1, 50);
INSERT INTO T VALUES (2,2, 2, 40);
INSERT INTO T VALUES (3,1, 3, 34);
INSERT INTO T VALUES (1,1, 4, 10);
INSERT INTO T VALUES (1,1, 5, 30);
INSERT INTO T VALUES (1,1, 6, 29);
INSERT INTO T VALUES (3,2, 7, 34);
INSERT INTO T VALUES (3,2, 8, 33);
INSERT INTO T VALUES (3,2, 9, 56);
INSERT INTO T VALUES (1,1, 7, 90);
INSERT INTO T VALUES (2,2, 8, 0,);
INSERT INTO T VALUES (1,1, 8, 80);
INSERT INTO T VALUES (2,2, 8, 65);
INSERT INTO T VALUES (1,1, 9, 34);
INSERT INTO T VALUES (2,2, 9, 11);each student belongs to one class_id. each student participates in many quizes. each quiz has its unique id. each student can appear once in a quiz_id
I am doing the below analysis and query:
1. with below query I am finding which student_id had most marks in any 3 successive quizes (see the 3-1 part below) in the query..
SELECT QUIZ_ID,
STUDENT_ID,
SUM (MARKS) OVER (PARTITION BY STUDENT_ID ORDER BY QUIZ_ID1
RANGE BETWEEN CURRENT ROW AND (3-1) FOLLOWING) consecMARKS , MARKS FROM
(SELECT QUIZ_ID,
STUDENT_ID,
MARKS,
ROW_NUMBER() OVER (PARTITION BY STUDENT_ID ORDER BY T.QUIZ_ID) QUIZ_ID1
FROM T
WHERE MARKS IS NOT NULL
ORDER BY 1
ORDER BY 3 DESC
SQL> /
QUIZ_ID STUDENT_ID CONSECMARKS
7 1 170
6 1 166
8 1 129
5 1 106
8 3 89
8 2 76
3 3 68
7 3 67
8 2 65
1 1 60
9 3 56
QUIZ_ID STUDENT_ID CONSECMARKS
9 1 49
2 2 40
4 1 40
9 2 11
15 rows selected.With above query, I can play around and find for any 'n' number of consecutive quizes, like marks in 2 consecutives quizes, 3, 4 and so on but for each 'n' value I've to run a seperate query mentioning (2-1) or (3-1) or (4-1) and so on..
since my table is big and there are about 400 quizes so what I want to find out is for each 'n' consecutive quiz (from 1 to 400) which student had most marks for each consecutie 'n' quiz. Like in 1 (consecutive) quiz which student had the highest marks and then 2 conseuctive quiz who had most marks and then in 3 consecutive quiz who had most marks and so on till 400 consecutive quiz who had most marks... rather than running query for each 'n' value seperately i want a single query that can give me a summary of most marks in each n consecutive quizes...
my sample output is:
Nth consecutive quiz student_id sum(marks)
1 1 90
2 1 170
3 1 246
4
100
200
300
400 ? ? Is this possible to get the above output from one single query? If there are two or more students with equal most marks for any 'n' conseutive quizes then both should come in the summary.
Hope I have been able to put up my question clearly.
regards
Ramis
Something like:
SELECT N,
QUIZ_ID,
STUDENT_ID,
SUM(MARKS) OVER (PARTITION BY N,STUDENT_ID ORDER BY QUIZ_ID1 RANGE BETWEEN CURRENT ROW AND (N-1) FOLLOWING) consecMARKS,
MARKS
FROM (SELECT QUIZ_ID,
STUDENT_ID,
MARKS,
ROW_NUMBER() OVER (PARTITION BY STUDENT_ID ORDER BY T.QUIZ_ID) QUIZ_ID1
FROM T
WHERE MARKS IS NOT NULL
SELECT LEVEL N
FROM DUAL
CONNECT BY LEVEL <= (
SELECT COUNT(DISTINCT QUIZ_ID)
FROM T
ORDER BY N,
consecMARKS DESC
N QUIZ_ID STUDENT_ID CONSECMARKS MARKS
1 7 1 90 90
1 8 1 80 80
1 8 2 65 65
1 9 3 56 56
1 1 1 50 50
1 2 2 40 40
1 9 1 34 34
1 7 3 34 34
1 3 3 34 34
1 8 3 33 33
1 5 1 30 30
N QUIZ_ID STUDENT_ID CONSECMARKS MARKS
1 6 1 29 29
1 9 2 11 11
1 4 1 10 10
1 8 2 0 0
2 7 1 170 90
2 6 1 119 29
2 8 1 114 80
2 8 3 89 33
2 8 2 76 65
2 3 3 68 34
2 7 3 67 34
N QUIZ_ID STUDENT_ID CONSECMARKS MARKS
2 8 2 65 0
2 1 1 60 50
2 5 1 59 30
2 9 3 56 56
2 2 2 40 40
2 4 1 40 10
2 9 1 34 34
2 9 2 11 11
3 7 1 204 90
3 6 1 199 29
3 5 1 149 30
N QUIZ_ID STUDENT_ID CONSECMARKS MARKS
3 7 3 123 34
3 8 1 114 80
3 2 2 105 40
3 3 3 101 34
3 1 1 90 50
3 8 3 89 33
3 8 2 76 65
3 8 2 76 0
3 4 1 69 10
3 9 3 56 56
3 9 1 34 34
N QUIZ_ID STUDENT_ID CONSECMARKS MARKS
3 9 2 11 11
4 6 1 233 29
4 5 1 229 30
4 7 1 204 90
4 4 1 159 10
4 3 3 157 34
4 7 3 123 34
4 1 1 119 50
4 2 2 116 40
4 8 1 114 80
4 8 3 89 33
N QUIZ_ID STUDENT_ID CONSECMARKS MARKS
4 8 2 76 0
4 8 2 76 65
4 9 3 56 56
4 9 1 34 34
4 9 2 11 11
5 5 1 263 30
5 4 1 239 10
5 6 1 233 29
5 1 1 209 50
5 7 1 204 90
5 3 3 157 34
N QUIZ_ID STUDENT_ID CONSECMARKS MARKS
5 7 3 123 34
5 2 2 116 40
5 8 1 114 80
5 8 3 89 33
5 8 2 76 0
5 8 2 76 65
5 9 3 56 56
5 9 1 34 34
5 9 2 11 11
6 1 1 289 50
6 4 1 273 10
N QUIZ_ID STUDENT_ID CONSECMARKS MARKS
6 5 1 263 30
6 6 1 233 29
6 7 1 204 90
6 3 3 157 34
6 7 3 123 34
6 2 2 116 40
6 8 1 114 80
6 8 3 89 33
6 8 2 76 0
6 8 2 76 65
6 9 3 56 56
N QUIZ_ID STUDENT_ID CONSECMARKS MARKS
6 9 1 34 34
6 9 2 11 11
7 1 1 323 50
7 4 1 273 10
7 5 1 263 30
7 6 1 233 29
7 7 1 204 90
7 3 3 157 34
7 7 3 123 34
7 2 2 116 40
7 8 1 114 80
N QUIZ_ID STUDENT_ID CONSECMARKS MARKS
7 8 3 89 33
7 8 2 76 0
7 8 2 76 65
7 9 3 56 56
7 9 1 34 34
7 9 2 11 11
8 1 1 323 50
8 4 1 273 10
8 5 1 263 30
8 6 1 233 29
8 7 1 204 90
N QUIZ_ID STUDENT_ID CONSECMARKS MARKS
8 3 3 157 34
8 7 3 123 34
8 2 2 116 40
8 8 1 114 80
8 8 3 89 33
8 8 2 76 0
8 8 2 76 65
8 9 3 56 56
8 9 1 34 34
8 9 2 11 11
9 1 1 323 50
N QUIZ_ID STUDENT_ID CONSECMARKS MARKS
9 4 1 273 10
9 5 1 263 30
9 6 1 233 29
9 7 1 204 90
9 3 3 157 34
9 7 3 123 34
9 2 2 116 40
9 8 1 114 80
9 8 3 89 33
9 8 2 76 0
9 8 2 76 65
N QUIZ_ID STUDENT_ID CONSECMARKS MARKS
9 9 3 56 56
9 9 1 34 34
9 9 2 11 11
135 rows selected.
SQL> SY.
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I have following data set:
CREATE TABLE APPS.T1
ROW_NUM NUMBER,
EFFECTIVE_START_DATE DATE NOT NULL,
EFFECTIVE_END_DATE DATE NOT NULL,
STATUS VARCHAR2(30 BYTE)
SET DEFINE OFF;
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effective_end_date,
CASE
WHEN LAG (effective_end_date, 1) OVER (ORDER BY row_num) + 1 = effective_start_date
THEN 0
WHEN LEAD (effective_start_date, 1) OVER (ORDER BY row_num) - 1 = effective_end_date
THEN 0
ELSE 1
END row_num
FROM (SELECT * FROM T1)Now the data returned looks like:
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20-MAR-11 31-MAR-11 1
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23-AUG-11 26-AUG-11 0
27-AUG-11 27-AUG-11 0
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MAX (effective_start_date) end_dt,
row_num
FROM (SELECT effective_start_date,
effective_end_date,
CASE
WHEN LAG (effective_end_date, 1) OVER (ORDER BY row_num) + 1 = effective_start_date
THEN 0
WHEN LEAD (effective_start_date, 1) OVER (ORDER BY row_num) - 1 = effective_end_date
THEN 0
ELSE 1
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FROM t1))
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effective_start_date end_dt,
row_num
FROM (SELECT effective_start_date,
effective_end_date,
CASE
WHEN LAG (effective_end_date, 1) OVER (ORDER BY row_num) + 1 = effective_start_date
THEN 0
WHEN LEAD (effective_start_date, 1) OVER (ORDER BY row_num) - 1 = effective_end_date
THEN 0
ELSE 1
END row_num
FROM (SELECT *
FROM t1))
WHERE row_num = 1
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20-MAR-11 20-MAR-11 1
06-AUG-11 27-AUG-11 0
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Edited by: faanwar on May 10, 2012 3:36 PMWell, actually, you'll need to tweak it a bit. something such as in :Scott@my11g SQL>l
1 with t (id, dstart, dend, status)
2 as (
3 select 1,to_date('01-JUL-09','dd-MON-YY'),to_date('06-SEP-09','dd-MON-YY'),'VAC' from dual
4 union all select 2,to_date('20-MAR-11','dd-MON-YY'),to_date('31-MAR-11','dd-MON-YY'),'VAC' from dual
5 union all select 3,to_date('06-AUG-11','dd-MON-YY'),to_date('22-AUG-11','dd-MON-YY'),'VAC' from dual
6 union all select 4,to_date('23-AUG-11','dd-MON-YY'),to_date('26-AUG-11','dd-MON-YY'),'VAC' from dual
7 union all select 5,to_date('27-AUG-11','dd-MON-YY'),to_date('27-AUG-11','dd-MON-YY'),'VAC' from dual
8 )
9 ------ end of sample data ------
10 select min(dstart) dstart, max(dend) dend, status, count(*) aggrows
11 from (
12 select
13 id
14 ,dstart
15 ,dend
16 ,status
17 ,dend
18 -sum(dend-dstart) over (partition by status order by dstart)
19 -row_number() over (partition by status order by dstart) grp
20 from t
21 )
22 group by grp, status
23* order by grp, status
Scott@my11g SQL>/
DSTART DEND STA AGGROWS
01/07/2009 00:00:00 06/09/2009 00:00:00 VAC 1
20/03/2011 00:00:00 31/03/2011 00:00:00 VAC 1
06/08/2011 00:00:00 27/08/2011 00:00:00 VAC 3 -
Diffrence b/w select single & select upto one row
hi
wat is the diffrence b/w select single & select upto one row?
deepakHi,
Select single has to be used with a where condition that has all the key fields:
It will always return a unique record(If a match is found).
Select upto 1 rows would get your the first record if multiple matches are found.
and select up to has to be end with endselect statements.
According to SAP Performance course the SELECT UP TO 1 ROWS is faster than SELECT SINGLE because you are not using all the primary key fields.
select single is a construct designed to read database records with primary key. In the absence of the primary key, it might end up doing a sequential search, whereas the select up to 1 rows may assume that there is no primary key supplied and will try to find most suitable index.
The best way to find out is through sql trace or runtime analysis.
Use "select up to 1 rows" only if you are sure that all the records returned will have the same value for the field(s) you are interested in. If not, you will be reading only the first record which matches the criteria, but may be the second or the third record has the value you are looking for.
The System test result showed that the variant Single * takes less time than Up to 1 rows as there is an additional level for COUNT STOP KEY for SELECT ENDSELECT UP TO 1 ROWS.
The 'SELECT SINGLE' statement selects the first row in the database that it finds that fulfils the 'WHERE' clause If this results in multiple records then only the first one will be returned and therefore may not be unique.
Mainly: to read data from
The 'SELECT .... UP TO 1 ROWS' statement is subtly different. The database selects all of the relevant records that are defined by the WHERE clause, applies any aggregate, ordering or grouping functions to them and then returns the first record of the result set.
Mainly: to check if entries exist.
When you say SELECT SINGLE, it means that you are expecting only one row to be present in the database for the condition you're going to specify in the WHERE clause. so that means, you will have to specify the primary key in your WHERE clause. Otherwise you get a warning.
SELECT UP TO 1 ROWS is used in cases where you just want to make sure that there is at least one entry in the database table which satisfies your WHERE clause. Generally, it is meant to be used for existence-check.
You may not want to really use the values returned by the SELECT statement in this case (thought this may not necessarily be so).And in each case the database optimizer may choose a different strategy to retrieve the data.
Knowing when to use SELECT SINGLE or SELECT ... UP TO 1 ROWS
A lot of people use the SELECT SINGLE statement to check for the existence of a value in a database. Other people prefer to use the 'UP TO 1 ROWS' variant of the SELECT statement.
So what's the difference between using 'SELECT SINGLE' statement as against a 'SELECT .... UP TO 1 ROWS' statement ?
If you're considering the statements
SELECT SINGLE field INTO w_field FROM table.
and
SELECT field INTO w_field FROM table UP TO 1 ROWS. ENDSELECT.
then looking at the result, not much apart from the extra ENDSELECT statement. Look at the run time and memory usage and they may be worlds apart.
Why is this ?? The answer is simple.
The 'SELECT SINGLE' statement selects the first row in the database that it finds that fulfils the 'WHERE' clause If this results in multiple records then only the first one will be returned and therefore may not be unique.
The 'SELECT .... UP TO 1 ROWS' statement is subtly different. The database selects all of the relevant records that are defined by the WHERE clause, applies any aggregate, ordering or grouping functions to them and then returns the first record of the result set.
According to SAP Performance course the SELECT UP TO 1 ROWS is faster than SELECT SINGLE because you are not using all the primary key fields.
http://sap-img.com/abap/difference-between-select-single-and-select-upto-one-rows.htm
Check these links -
The specified item was not found.
diff between select single and up to one row
diff b/w SECELT SINGLE * AND SELECT UPTO ONE ROW
Regards,
Priyanka. -
Difference between select single * & select upto 1 rows
difference between select single * & select upto 1 rows
Hi,
According to SAP Performance course the SELECT UP TO 1 ROWS is faster than SELECT SINGLE because you are not using all the primary key fields.
Select single is a construct designed to read database records with primary key. In the absence of the primary key, it might end up doing a sequential search, whereas the select up to 1 rows may assume that there is no primary key supplied and will try to find most suitable index.
The best way to find out is through sql trace or runtime analysis.
Use "select up to 1 rows" only if you are sure that all the records returned will have the same value for the field(s) you are interested in. If not, you will be reading only the first record which matches the criteria, but may be the second or the third record has the value you are looking for.
The System test result showed that the variant Single * takes less time than Up to 1 rows as there is an additional level for COUNT STOP KEY for SELECT ENDSELECT UP TO 1 ROWS.
The 'SELECT SINGLE' statement selects the first row in the database that it finds that fulfils the 'WHERE' clause If this results in multiple records then only the first one will be returned and therefore may not be unique.
Mainly: to read data from
The 'SELECT .... UP TO 1 ROWS' statement is subtly different. The database selects all of the relevant records that are defined by the WHERE clause, applies any aggregate, ordering or grouping functions to them and then returns the first record of the result set.
Mainly: to check if entries exist.
Select Single
You need to mention all the key fields of the table.
No END SELECT required.
More performance compared to upto 1 row.
Where as UP to 1 row.
YOu can use if you do not have all the primiary key fields available.
END SELECT requeired.
Since all keys are not passing, possiblities of have other rows which satisfies the condition.
Select Statement with EndSelect is a loop, which in a single run retrieves a single Record. This Record has to be stored in a Work Area and then appended into an Internal Table.
Select Statements without EndSelect is not a loop and it retrieves the whole Record set matching the Criteria in a single shot and has to be Stored in an Internal Table Directly.
The most important thing to remember about the SELECT SINGLE is
There are several things to remember:
1) It retrieves only one row
2) It does not need an ENDSELECT statement
3) THE FULL KEY OF THE TABLE MUST BE INCLUDED IN
THE WHERE CLAUSE OF THE SELECT STATEMENT
Regards -
Select Single Vs Select upto 1 row
Hi All,
Please tell me which of the two statements is better if we want to retrieve only one record from a table.
Select single or Select upto 1 rows?
Regards,
SaurabhThere is a lot of confusion in the replies and also in the other thread.
If yoou ask 'A versus B' then this implies that you can use both for the same task, which is here not really true.
SELEC SINGLE should be used for SELECT with full primary key. where only 1 record CAN come back.
UP TO 1 ROWS is the special case of UP TO n ROWS can be used with any WHERE condition and gives you the first record which is found.
>The 'SELECT .... UP TO 1 ROWS' statement is subtly different. The database selects all of the
> relevant records that are defined by the WHERE clause or lack of, applies any aggregate,
> ordering or grouping functions to them and then returns the first record of the resultant result
> set.
This in incorrect, the UP TO n ROWS does not read all, only if the ORDER BY is added, then you will get the first records in sort order which requires that all rfecords are read.
If you use UP TO 1 ROWS with a WHERE condition which is fulfilled by many records, then the first record is usually found very fast, even faster than a SELECT SINGLE.
If you use UP TO 1 ROWS or SELECT SINGLE with the same WHERE condition, then both are more or less the same.
Siegfried -
Select single * & Select * upto one row
What is the difference between Select single * & Select * upto one row?Performance wise which is a better one?
Hi,
According to SAP Performance course the SELECT UP TO 1 ROWS is faster than SELECT SINGLE because you are not using all the primary key fields.
Select single is a construct designed to read database records with primary key. In the absence of the primary key, it might end up doing a sequential search, whereas the select up to 1 rows may assume that there is no primary key supplied and will try to find most suitable index.
The best way to find out is through sql trace or runtime analysis.
Use "select up to 1 rows" only if you are sure that all the records returned will have the same value for the field(s) you are interested in. If not, you will be reading only the first record which matches the criteria, but may be the second or the third record has the value you are looking for.
The System test result showed that the variant Single * takes less time than Up to 1 rows as there is an additional level for COUNT STOP KEY for SELECT ENDSELECT UP TO 1 ROWS.
The 'SELECT SINGLE' statement selects the first row in the database that it finds that fulfils the 'WHERE' clause If this results in multiple records then only the first one will be returned and therefore may not be unique.
Mainly: to read data from
The 'SELECT .... UP TO 1 ROWS' statement is subtly different. The database selects all of the relevant records that are defined by the WHERE clause, applies any aggregate, ordering or grouping functions to them and then returns the first record of the result set.
Mainly: to check if entries exist.
Select Single
You need to mention all the key fields of the table.
No END SELECT required.
More performance compared to upto 1 row.
Where as UP to 1 row.
YOu can use if you do not have all the primiary key fields available.
END SELECT requeired.
Since all keys are not passing, possiblities of have other rows which satisfies the condition.
Select Statement with EndSelect is a loop, which in a single run retrieves a single Record. This Record has to be stored in a Work Area and then appended into an Internal Table.
Select Statements without EndSelect is not a loop and it retrieves the whole Record set matching the Criteria in a single shot and has to be Stored in an Internal Table Directly.
The most important thing to remember about the SELECT SINGLE is
There are several things to remember:
1) It retrieves only one row
2) It does not need an ENDSELECT statement
3) THE FULL KEY OF THE TABLE MUST BE INCLUDED IN
THE WHERE CLAUSE OF THE SELECT STATEMENT
Regards -
Grouping consecutive rows with same value?
Hi
I have a table in which three columns are:
ROWID SHOPNAME
1 SHOP_C
2 SHOP_A
3 SHOP_C
4 SHOP_C
5 SHOP_A
6 SHOP_A
7 SHOP_C
8 SHOP_B
9 SHOP_B
10 SHOP_E
11 SHOP_A
12 SHOP_D
13 SHOP_D
14 SHOP_F
15 SHOP_G
16 SHOP_F
17 SHOP_C
18 SHOP_C
19 SHOP_C
20 SHOP_C Rowid is a primary key column with unique ids
Shopname is varchar2 column
I want to make groupings of every "shopname" value "order by ROWID" such that when there are consecutive rows of same shopname the group remains same and as soon as there is different value in shopname column for the next row the "group" changes.
below is my desired output is with 3rd column of groupings as follows:
ROWID SHOPNAME Groups
1 SHOP_C 1
2 SHOP_A 2
3 SHOP_C 3 ------> same grouping because Shop name is same
4 SHOP_C 3 ------> same grouping because shop name is same
5 SHOP_A 4 ----> different shopname so group changed.
6 SHOP_A 4 ----> same group as above because shopname is same
7 SHOP_C 5
8 SHOP_B 6
9 SHOP_B 6
10 SHOP_E 7
11 SHOP_A 8
12 SHOP_D 9
13 SHOP_D 9
14 SHOP_F 10
15 SHOP_G 11
16 SHOP_F 12
17 SHOP_C 13
18 SHOP_C 13
19 SHOP_C 13
20 SHOP_C 13I want that to be done via analytics, so that I can partition by clause for different shops over different cities
regards
Ramis.with data(row_id, shop) as
select 1, 'SHOP_C' from dual union all
select 2, 'SHOP_A' from dual union all
select 3, 'SHOP_C' from dual union all
select 4, 'SHOP_C' from dual union all
select 5, 'SHOP_A' from dual union all
select 6, 'SHOP_A' from dual union all
select 7, 'SHOP_C' from dual union all
select 8, 'SHOP_B' from dual union all
select 9, 'SHOP_B' from dual union all
select 10, 'SHOP_E' from dual union all
select 11, 'SHOP_A' from dual union all
select 12, 'SHOP_D' from dual union all
select 13, 'SHOP_D' from dual union all
select 14, 'SHOP_F' from dual union all
select 15, 'SHOP_G' from dual union all
select 16, 'SHOP_F' from dual union all
select 17, 'SHOP_C' from dual union all
select 18, 'SHOP_C' from dual union all
select 19, 'SHOP_C' from dual union all
select 20, 'SHOP_C' from dual
get_data as
select row_id, shop,
lag(shop) over (order by row_id) prev_shop
from data
select row_id, shop,
sum(case when shop = prev_shop
then 0
else 1
end
) over (order by row_id) grps
from get_data;
ROW_ID SHOP GRPS
1 SHOP_C 1
2 SHOP_A 2
3 SHOP_C 3
4 SHOP_C 3
5 SHOP_A 4
6 SHOP_A 4
7 SHOP_C 5
8 SHOP_B 6
9 SHOP_B 6
10 SHOP_E 7
11 SHOP_A 8
12 SHOP_D 9
13 SHOP_D 9
14 SHOP_F 10
15 SHOP_G 11
16 SHOP_F 12
17 SHOP_C 13
18 SHOP_C 13
19 SHOP_C 13
20 SHOP_C 13
20 rows selected -
Hi,
I have a problem with JTable. ...i have just started working with JTables and still have not got a complete hang of how they function.
I have a table whose model is "AbstractTableModel". I have different data in each row of the table therefore i have a celledtior and cell renderer per row. Each row is rendered as a combo box. There is only one column in that table. What i need to do is when the user clicks on any of these the rows in the table i need to evaluate what is the content in that row(in the combo box-It should be the values that have not been used up yet in the other rows...so basically as you add rows the combo box content will keep shrinking till all the possible vlaues are exhausted).
I added a celleditor listener for every row. When the user clicks on the cell the event get's captured but the row value that shows up is not row the user selected. The value is always the previous selected row. Each cell is rendered as a combo box.
For example if the user selected the first row in the table then the value of the row selected is -1. If the the user adds two more rows and selects the third row then the value selected is 0 (previos selected).
What i cannot figure out is how in the world is this value obtained.
Please help !! I tried everything i can think of to get the correct value of the row selected.
Thanks a lot for your time and patience.
ArchanaHello Suman,
Please, look at 'No First Select from Table' section of this blog: [/people/jarrod.williams/blog/2006/12/14/visual-composer-tips-and-tricks|/people/jarrod.williams/blog/2006/12/14/visual-composer-tips-and-tricks]
Good luck,
Ola -
Selecting an entire row with the help of Checkbox
Hi and Evening to Everybody,
I have a Scenario where i need to select an entire row using the check box. Let me first define the Situation. I created a Simple Sql-report where the first column is a Simple Checkbox and the second column is a display only name and followed by the rest 5 columns as a checkbox.
my table structure is :
**create table satt (SELECT_ALL VARCHAR2(10), Name VARCHAR2(50), Object1 VARCHAR2(10), Object2 VARCHAR2(10), Object3 VARCHAR2(10), Object4 VARCHAR2(10), Object5 VARCHAR2(10));**
Now i had a requirement where i need to Check All or Uncheck All Checkbox by clicking SELECT_ALL column header and i made it using
simple java-script :
"<input type="Checkbox" onclick="$f_CheckFirstColumn(this)">"
Now i need to Check all checkbox in a row by clicking any of the SELECT_ALL check boxes. (Say i have 5 checkboxes in SELECT_ALL column and if i click 3rd checkbox... i need the entire 3rd row checkbox to be checked on click of that 3rd check box).
I hope i was clear with my question. i did my best. Please help me out with this... Im eagerly lookin for the solutions.
Thanks & Regards,
- The Beginner.
Edited by: 854477 on Jul 13, 2011 4:57 AM
Edited by: 854477 on Jul 13, 2011 5:01 AMSolomon Yakobson wrote:
There is no row order in relational tables unless ORDER BY is used, so there is no way to decide if 3 Mathematics belongs to 100 or to 200.
SY.That's not how I interpretted it. I thought he was saying that in the first row column B has the value:
'1 Physics'||chr(10)||'2 Chemistry'||chr(10)||'3 Mathematics'
in which case something like this would work
select a,replace(b,chr(10),chr(10)||a||' ') from table; -
All SELECT statements work except of SELECT *
Hi,
I have one table with 2 rows in Oracle 10.1.0.2.0
All SELECT statements work (e.g. SELECT COUNT(*) FROM, SELECT COLUMNNAME FROM TABLE, etc.)
But when I execute SELECT * FROM it never shows any response in SQLPlus. I can view the data with Enterprise Manager Console - using View/Edit Content.
How this can be caused?
Thanks for reply.Hi,
I don't get any error. I enter the SELECT * FROM statement run it and cursor jumps to next line and is blinking forever...
So I got no error response from database.
SELECT COLUMNNAME FROM works normally.
As I wrote the machine with database is probably used over its limits - I'm not DBA but SGA is set up to use about 90% of memory (as I learnt from other forums recomendation for Solaris/Sun is about 40%).
Unfortunatelly I have just 2 rows in my table. There are metadata in the table which are needed to get info about other tables in the database.
So I am wondering why is the database able to work normally but doesn't response to this statement. I run queries on other tables in database with millions of records, but I am not able to run this query.
Can be table somehow corrupted? It is strange...
Regards,
Petr -
XMLP 5.6.2 - Parameters - Both Multi-Select and All-Select Do Not Work
Both Multi-Select and All-Select Do Not Work.
What's up with this behavior?
And when might it be fixed?
BG...The Multi-Select is now working, not sure what I did wrong earlier. However the "Can select all" option when building the parameter does not work as advertised, though I was able to get around that as well.
Create a Data Model
select LAST_NAME, FIRST_NAME from SOME_TABLE where SOME_COLUMN =:SOME_VALUE
OR
select LAST_NAME, FIRST_NAME from SOME_TABLE where SOME_COLUMN in (:SOME_VALUE)
Create a LOV
Name = LOV_SOME_COLUMN
Type = SQL Query
select distinct SOME_TABLE.SOME_COLUMN as SOME_COLUMN from SCHEMA.TABLE
Create a Parameter
Identifier = PARM_SOME_COLUMN
Data Type = String
Default Value = NULL
Parameter Type = Menu
Display Label = LOV_SOME_COLUMN
List Of Value = LOV_SOME_COLUMN
Option
Multiple Selection - Checked
Can select all - Checked
Refresh other parameters on change - Checked
Then test your report. Select "All" from the LOV and click view. Result - No Rows Returned.
Selecting a "Single" or "Multiple Values" values from the LOV does work.
The way I am getting around the problem is to uncheck the "Can select all" and then manually select all the values in the LOV in order to get the "All".
BG... -
Select 2 records (rows) in the results.
I am using Oracle R12- Forms.
After searched for all orders for a specific Customer, on the Results, I need to select 2 different rows.
Also tried ft object,but failed.
If manual, I use Keep holding the Ctrl Key, and Click for the first row, and Click 2nd row.
In OATS, I could not do this with the code below:
int rone=2;
int rtwo=5
Robot robot = new Robot();
robot.delay(5000);
// press and hold CONTROL key
robot.keyPress(KeyEvent.VK_CONTROL);
forms.textField("//forms:textField[(@name='MY_ORDER_NUM_"+rone+"')]").click();
forms.textField("//forms:textField[(@name='MY_ORDER_NUM_"+rtwo+"')]").click();
robot.keyRelease(KeyEvent.VK_CONTROL);
Any help is greatly appreciated.
Thanks,What you need is a tree.
See Tomahawk (www.myfaces.org)
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