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Update products table based on sku prefix


By : Tero Lindeman
Date : October 15 2020, 11:12 PM
hop of those help? I have a products table, that has a manufacturerID that is currently -1 for all the products.
code :


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How can I write an update trigger to update the current table based on a value in another table in SQL Server 2008?


By : user3815112
Date : March 29 2020, 07:55 AM
I wish this helpful for you I believe you'll want your update statement changed to look like this:
code :
UPDATE b
SET b.MemId = a.MemId
FROM dbo.Table_B AS b
INNER JOIN Inserted AS i ON b.EmpId = i.EmpId
INNER JOIN dbo.Table_A AS a ON b.EmpId = a.EmpId

Table name prefix for columns in UPDATE query


By : BillHark
Date : March 29 2020, 07:55 AM
This might help you It is not valid to prefix the column in the SET section with table alias in PostgreSQL, mentioned in the documentation:

Linux: Update directory structure for millions of images which are already in prefix-based folders


By : Dmitrij Beloussow
Date : March 29 2020, 07:55 AM
it fixes the issue One way to do it is to simply loop over all the directories you already have, and in each bottom-level subdirectory create the new subdirectory and move the files:
code :
for d in ?/?/?/; do (
  cd "$d" &&
  printf '%.4s\0' * | uniq -z | 
  xargs -0 bash -c 'for prefix do
                      s=${prefix:3:1}
                      mkdir -p "$s" && mv "$prefix"* "$s"
                    done' _
) done
( cd "$d" && ...; )
printf '%.4s\0' * | uniq -z | xargs -0 ...

MySQL, automatic update a field after insert, based on id and prefix


By : cxr8415
Date : March 29 2020, 07:55 AM
should help you out I am trying to create in MySQL a 'custom' unique ID based on existing primary key (auto-incremented) 'id' field , Get the new value and add it before insert
code :
   delimiter //
    CREATE TRIGGER update_id BEFORE INSERT ON test 
    BEGIN
        SET @pn:= ( SELECT AUTO_INCREMENT 
                        FROM INFORMATION_SCHEMA.TABLES
                        WHERE TABLE_NAME='test'
                          AND TABLE_SCHEMA=DATABASE() ); 
      SET new.PN= CONCAT('PN-',@pn);
    END;
    //
    delimiter ;

Find words in table based off prefix


By : Xogos
Date : March 29 2020, 07:55 AM
To fix this issue This query is very efficient if SQLite can use an index for this lookup.
LIKE is case insensitive, so
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