See the empty table if there is no data
HelloI have a line chart in a dashboard page, which shows sales of the company in a given country (chosen by guest). When I choose a country that has no data, the system displays message: "no results - specified criteria result in all data. I want that in this scenario, appears an empty array. Is it possible? How do I change my application? Thank you
Giancarlo
OK, in this case, you must change the join in the repository. Let's say you have a table 'months' and a fact table. Join the two tables, but use a right join (where the table is the table with the months). This way, you will get all values in the table of months, associated with the data in the fact table. During these months does not, you will see the value null. You can set a zero with a case statement.
I hope this helps.
J. -.
Tags: Business Intelligence
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SeyedHello
I guess that the error you receive notice when you were in that sequence was ORA-02287: unauthorized by sequence number. This is because you had the ORDER BY clause in there. If you get rid of it, you can just use the sequence number in the insert without the need first to select it...
With ORDER BY
XXXX> insert 2 into 3 dt_t1 4 SELECT 5 dt_seq.NEXTVAL, 6 SYSDATE 7 FROM 8 dual 9 CONNECT BY LEVEL 10 <=10 11 ORDER BY 12 1 13 / dt_seq.NEXTVAL, * ERROR at line 5: ORA-02287: sequence number not allowed hereNo ORDER OF
XXXX> insert 2 into 3 dt_t1 4 SELECT 5 dt_seq.NEXTVAL, 6 SYSDATE 7 FROM 8 dual 9 CONNECT BY LEVEL 10 <=10 11 / 10 rows created.Of course, I guess you want a new id for each row, as seems to be the name of the primary key column.
HTH
David
Published by: Bravid on December 19, 2011 16:07
Published by: Bravid on December 19, 2011 16:08
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| 0 | SELECT STATEMENT | 1000K | 82 M | 22523 (1) | 00:04:31 |
| 1. SORT ORDER BY | 1000K | 82 M | 200 M | 22523 (1) | 00:04:31 |
| 2. FULL RESTRICTED INDEX SCAN FAST | HIST3_PK | 1000K | 82 M | 2524 (2) | 00:00:31 |
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If I look at the execution plan, I don't understand why a SORT statement should be needed, as data already take the IOT in the order requested.
Any thoughts?
ThomasThere are various ways how Oracle sorts VARCHARs.
When you create an index on a VARCHAR column, sort order is binary.
Try ' alter session set nls_sort = "BINARY" "and run your query."
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