exists clause

[#1]

have one base table A  with fields upc ,description.

want to load data from 6 more tables into the  table A but only those rows where UPC does not exist in  table A

example

table A

UPC,description

123,asd

124,der

129,dsa

table B

UPC,description

123,asd

333,sss

129,dsa

table C

UPC,description

123,asd

999,QQQ

129,dsa

thanks in advance.

[cesaraccardi]

Hi,

First you load the table A, for the next loads you do this way:

table B
load * from (...) where not exists(UPC);

table C
load * from (...) where not exists(UPC);

Regards,

Cesar

[#3]

The other 5 tables seem to be in the DB or excel files. If it was inside the qvw, they would merge them automatically.

If they are inside other files you could simply use where (like a regular SQL)

LOAD *

FROM TABLEA;

LOAD *

FROM TABLE B

WHERE NOT EXISTS(UPC);

LOAD *

FROM TABLE C

WHERE NOT EXISTS(UPC);

and so on.

[#4 · Accepted solution]

ItemTable:

LOAD

UPC,

Description;

SQL

SELECT

       UPC,

      Description

  FROM itemmain ;

LOAD

UPC,

Description;

SQL

SELECT

       UPC,

      Description

  FROM GFIMAIN where not exists(UPC) ;

its not working.Am i missing something ?

thank you

[#5]

YES.

You are mixing SQL with Qlikview’s internal load.

LOAD

UPC,

Description;

SQL

SELECT

UPC,

Description

FROM itemmain ;

// the where should be after all reg where brought by the SQL.

LOAD

UPC,

Description

where not exists(UPC) ;

SQL

SELECT

UPC,

Description

FROM GFIMAIN;

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Thank you.

[#6]

thank you.it works!!

[#7]

thank you