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I am converting the old PowerBuilder code to the latest version and having some problem with a datawindow code which uses Union function.

The old code makes union of 4 tables with 3 tables. The old code works fine but there is syntax error with the new code. The error is caused by the 0 and 'X' in the following example. Can someone tell me what should be the right syntax. Thanks.


    TABLE(NAME=~"table1~" )  
    TABLE(NAME=~"table2~" )  
    TABLE(NAME=~"table3~" )  
    TABLE(NAME=~"table4~" )



    TABLE(NAME=~"table1~" )  
    TABLE(NAME=~"table3~" )  
    TABLE(NAME=~"table4~" )




asked 14 Dec '11, 03:08

sam's gravatar image

accept rate: 0%

edited 14 Dec '11, 08:24

Volker%20Barth's gravatar image

Volker Barth

Try asking this question on the sybase.public.powerbuilder.datawindow newsgroup on the NNTP server.

Suggestion: Switch to using SQL syntax instead of the PBSELECT syntax, then you can code an actual UNION.

(14 Dec '11, 07:25) Breck Carter
Replies hidden

@Breck Carter thanks for the suggestion. Could you please tell how to switch to using SQL Syntax instead of PBSELECT? Can I simply write SQL syntax in the datawindow?

(14 Dec '11, 08:14) sam

Open the DataWindow painter, switch to SQL mode and select Design->Convert to Syntax from the menu bar.

alt text

(14 Dec '11, 08:51) Reimer Pods

The syntax from 12.5 Build 2511 for a union of the PB Demo DB department table looks like:

retrieve=" PBSELECT( VERSION(400) TABLE(NAME=~"department~" ) COLUMN(NAME=~"department.dept_id~") COLUMN(NAME=~"department.dept_name~") COLUMN(NAME=~"department.dept_head_id~"))
UNION PBSELECT( VERSION(400) TABLE(NAME=~"department~" ) COLUMN(NAME=~"department.dept_id~") COMPUTE(NAME=~"'X'~") COMPUTE(NAME=~"1~"))) " update="department" updatewhere=1 updatekeyinplace=no )

Notice that the 'X' and 1 column values are tagged with COMPUTE.

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answered 14 Dec '11, 15:13

Chris%20Keating's gravatar image

Chris Keating
accept rate: 31%

@Chris Keating Thanks, if it was an answer, I'd accept it. The problem was because of missing COMPUTE tag.

(15 Dec '11, 03:39) sam

@Chris Keating Just a small question, what would be syntax if i want to write NULL. It won't accept COMPUTE(NAME=~"NULL~"). Would the NULL be exactly same as COMPUTE(NAME=~"0~")?

(15 Dec '11, 07:36) sam
depending on your version of pb, this should be available.
while in the dw painter, click the data source option.
one of the tabs should be Syntax.
copy the syntax.
convert to syntax as shown above.
paste what you copied from the syntax tab.
you should be good to go.
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answered 14 Dec '11, 10:02

Tom%20Mangano's gravatar image

Tom Mangano
accept rate: 8%

edited 14 Dec '11, 10:04

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question asked: 14 Dec '11, 03:08

question was seen: 4,351 times

last updated: 15 Dec '11, 12:37