Which query to use: REPLACE/WHERE NOT EXISTS/NOT IN
There is a one to many relation in the database which needs to be updated.
There is a table tasks and a table users which are linked with a table task_users containing three columns: id, task_id, user_id. There could be more than one user coupled to a task at a time so there could be entries like:
Which query to use: REPLACE/WHERE NOT EXISTS/NOT IN
There is a one to many relation in the database which needs to be updated.
There is a table tasks and a table users which are linked with a table task_users containing three columns: id, task_id, user_id. There could be more than one user coupled to a task at a time so there could be entries like:
Which query to use: REPLACE/WHERE NOT EXISTS/NOT IN
There is a one to many relation in the database which needs to be updated.
There is a table tasks and a table users which are linked with a table task_users containing three columns: id, task_id, user_id. There could be more than one user coupled to a task at a time so there could be entries like:
Which query to use: REPLACE/WHERE NOT EXISTS/NOT IN
There is a one to many relation in the database which needs to be updated.
There is a table tasks and a table users which are linked with a table task_users containing three columns: id, task_id, user_id. There could be more than one user coupled to a task at a time so there could be entries like:
Which query to use: REPLACE/WHERE NOT EXISTS/NOT IN
There is a one to many relation in the database which needs to be updated.
There is a table tasks and a table users which are linked with a table task_users containing three columns: id, task_id, user_id. There could be more than one user coupled to a task at a time so there could be entries like:
Which query to use: REPLACE/WHERE NOT EXISTS/NOT IN
There is a one to many relation in the database which needs to be updated.
There is a table tasks and a table users which are linked with a table task_users containing three columns: id, task_id, user_id. There could be more than one user coupled to a task at a time so there could be entries like: