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I have a SQL Code which runs fine until I run a join with another table for a specific field


I have a SQL Code which runs fine until I run a join with another table for a specific field

By : user2950972
Date : November 17 2020, 11:58 AM
will help you I have a SQL Code which runs fine until I run a join with another table for a specific field. , It sounds like you just need to use LEFT JOIN instead:
code :
select 
 table_A.invoice_id [Column 1]
,table_B.invoice_date [Column 2]
,table_C.bill_number [Column 3]
,table_A.order_id [Column 4]
,(Calculated field) [Column 5]
,table_C.picked_on_date [Column 6]
,COALESCE(table_F.company_name,'') [Column 7]
from table_A
join table_B on tableA.invoice_id = tableB.invoice_id
join table_C on tableA.order_id = table_C.order_id
join table_D on tableA.order_id = table_D.[order]
left join table_E on table_C.assignment_id = table_E.number
left join table_F on table_E.carrier_id = table_F.company_id
where 
    table_D.charge_code='ABC'
and table_A.[status] <> 'Cancelled'
and table_A.customer = @customer_id 
and table_B.invoice_date >= @from_date
and table_B.invoice_date <= @to_date   
order by table_A.invoice_id


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JOIN query too slow on real database, on small one it runs fine

JOIN query too slow on real database, on small one it runs fine


By : user3344697
Date : March 29 2020, 07:55 AM
wish help you to fix your issue Your query looks fine. I suspect your query performance may be improved if you add a compound index to help the subquery that finds the latest entry from users_botinet for each user.
The subquery is:
code :
   SELECT max( tstamp ) AS lastDate, user_id
     FROM users_bonitet
    GROUP BY user_id
ALTER TABLE users_bonitet ADD KEY maxfinder (user_id, tstamp);
  FROM users_botinet
  INNER JOIN (
         SELECT MAX(id) AS id
           FROM users_botinet
          GROUP BY user_id
       ) ubmax ON users_botinet.id = ubmax.id
<script> code in Meteor runs fine but exact code moved to .onRendered() doesn't

<script> code in Meteor runs fine but exact code moved to .onRendered() doesn't


By : abhjos
Date : March 29 2020, 07:55 AM
will help you EDIT
You need to make those variables available in the global scope for the script to access them:
code :
var _cpmp = _cpmp || [];
window._cpmp = window._cpmp || [];
Access SQL select count number of specific field from one table join another table

Access SQL select count number of specific field from one table join another table


By : Vivek mishra
Date : March 29 2020, 07:55 AM
it should still fix some issue It is unclear where the distinct comes in. This is just a join and group by:
code :
select u.user_name, count(gb.user_code)
from users as u left join
     gb
     on u.user_code = gb.user_code
group by u.user_name;
Why is my Python code not running correctly in Visual Studio Code, but runs fine in IDLE?

Why is my Python code not running correctly in Visual Studio Code, but runs fine in IDLE?


By : lww6247
Date : March 29 2020, 07:55 AM
seems to work fine You are defining function search4vowels() but VisualStudio doesn't know how to run it.
Try adding this in your code:
code :
def search4vowels(word):
    """Display any vowels found in a supplied word."""
    vowels = set('aeiou')
    found = vowels.intersection(set(word))
    return bool(found)

# This tells your code to run the function search4vowels():
if __name__ == '__main__':
    print(search4vowels('your word'))
Inserting into SQL table via C#, code runs fine but i cant find the new entry in the db

Inserting into SQL table via C#, code runs fine but i cant find the new entry in the db


By : Ali Akbar
Date : March 29 2020, 07:55 AM
I hope this helps . I am pretty new to C#. I am trying to create a WinForms app where you can enter personal info and it gets stored in a SQL table. The code runs without a hitch, but afterwards the new entry is nowhere to be found. I created the database in Visual Studio. , I figured it out. If i changed my ConnectionString from:
code :
"Data Source=(LocalDB)\MSSQLLocalDB;AttachDbFilename=|DataDirectory|\VotingDb.mdf;Integrated Security=True"
Data Source=(LocalDB)\MSSQLLocalDB;AttachDbFilename=C:\WHERE THE FILE IS LOCATED\VotingDb.mdf;Integrated Security=True
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