Return space in the case of no row returned

Question

Hi,
I have a requirement , if sql query will not return any row in that case I want to display speace
Please have a look into belwo example.
select number_column1, number_column2,varchar_columb3 from my_table where column1=values
In the case of no_row_returned above query should return space
example
' ' number_column1,' ' number_column2,' 'varchar_columb3

Answer 1

Hi,
Siddharth Singh wrote:
Hi,
I have a requirement , if sql query will not return any row in that case I want to display speace
Please have a look into belwo example.
select number_column1, number_column2,varchar_columb3 from my_table where column1=values
In the case of no_row_returned above query should return space
example
' ' number_column1,' ' number_column2,' 'varchar_columb3An outer join produces results when when nothing is found in a certain table:
SELECT     m.number_column1
,      m.number_column2
,     m.varchar_columb3
,     ' '     AS space_col     -- If wanted
FROM             dual
LEFT OUTER JOIN my_table  m  ON  m.column1  = m.vals     -- VALUES is not a good column name
;Whether or not space_col is included, the result set will include 1 row that appears to be empty when no data is actaully taken from my_table.