Web2py/DAL equivalent of "not in [a table]"

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Vlad

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May 14, 2019, 6:06:49 PM5/14/19
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What would be an equivalent of the following?

SELECT ID, Name 
FROM   Table1 
WHERE  ID NOT IN (SELECT ID FROM Table2)

Val K

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May 14, 2019, 7:16:26 PM5/14/19
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should help:

sql_str = db()._select(db.tbl2.id)  #note underscore before `select`
db(~db.tbl1.id.belongs(sql_str)).select(db.tbl1.id, db.tbl1.name)  


Eliezer (Vlad) Tseytkin

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May 14, 2019, 10:49:32 PM5/14/19
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works like a charm! 
thank you ! 

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Massimo Di Pierro

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May 15, 2019, 1:28:31 AM5/15/19
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Something is wrong. You are searching that the id of one table is not the id of another table. But that is not a reference.

On Tuesday, 14 May 2019 19:49:32 UTC-7, Vlad wrote:
works like a charm! 
thank you ! 

On Tue, May 14, 2019 at 7:16 PM Val K <valq...@gmail.com> wrote:
should help:

sql_str = db()._select(db.tbl2.id)  #note underscore before `select`
db(~db.tbl1.id.belongs(sql_str)).select(db.tbl1.id, db.tbl1.name)  






On Wednesday, May 15, 2019 at 1:06:49 AM UTC+3, Vlad wrote:
What would be an equivalent of the following?

SELECT ID, Name 
FROM   Table1 
WHERE  ID NOT IN (SELECT ID FROM Table2)

--
Resources:
- http://web2py.com
- http://web2py.com/book (Documentation)
- http://github.com/web2py/web2py (Source code)
- https://code.google.com/p/web2py/issues/list (Report Issues)
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Eliezer (Vlad) Tseytkin

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May 15, 2019, 1:37:39 AM5/15/19
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Oh, no problem, I've adjusted it for my case. My problem was that I wasn't aware about subqueries (_select vs. select), so that was the main take away :)

On Wed, May 15, 2019, 1:28 AM Massimo Di Pierro <massimo....@gmail.com> wrote:
Something is wrong. You are searching that the id of one table is not the id of another table. But that is not a reference.

On Tuesday, 14 May 2019 19:49:32 UTC-7, Vlad wrote:
works like a charm! 
thank you ! 

On Tue, May 14, 2019 at 7:16 PM Val K <valq...@gmail.com> wrote:
should help:

sql_str = db()._select(db.tbl2.id)  #note underscore before `select`
db(~db.tbl1.id.belongs(sql_str)).select(db.tbl1.id, db.tbl1.name)  






On Wednesday, May 15, 2019 at 1:06:49 AM UTC+3, Vlad wrote:
What would be an equivalent of the following?

SELECT ID, Name 
FROM   Table1 
WHERE  ID NOT IN (SELECT ID FROM Table2)

--
Resources:
- http://web2py.com
- http://web2py.com/book (Documentation)
- http://github.com/web2py/web2py (Source code)
- https://code.google.com/p/web2py/issues/list (Report Issues)
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--
Resources:
- http://web2py.com
- http://web2py.com/book (Documentation)
- http://github.com/web2py/web2py (Source code)
- https://code.google.com/p/web2py/issues/list (Report Issues)
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