trying to hide a button provided to save present... and should be

trying to hide a button provided to save present... and it should be visible when recording is not present...

So, I choose to condition condition... * return sql query is not no line... *.
Select count (*) in master_magazine2


I'm not able to find all the data in master_magazine 2. But the rest I'm not able to see the button... ?
I put my state doesn't exist don't no sql query return no lines I thought it should work...
The button, that I felt should be visible since there is no record in this table...

Published by: pauljohny on August 8, 2012 05:16

pauljohny wrote:
trying to hide a button provided to save present... and it should be visible when recording is not present...

So, I choose to condition condition... * return sql query is not no line... *.
Select count (*) in master_magazine2

I'm not able to find all the data in master_magazine 2. But the rest I'm not able to see the button... ?
I put my state doesn't exist don't no sql query return no lines I thought it should work...
The button, that I felt should be visible since there is no record in this table...

Published by: pauljohny on August 8, 2012 05:16

your sql will always return a row, count (*) always returns a number or, if there is no data then returns 0

So the query should be present for your condition (does not exist the SQL return no rows)

select 1 from master_magazine2

See this http://docs.oracle.com/cd/B19306_01/server.102/b14200/functions032.htm

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