Is it necessary to disconnect all connections before deleting the PostgreSQL database?

PostgreSQL Is it necessary to disconnect all connections before deleting the database ?

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Take the answer 1：

stay PostgreSQL in , If a library is being used , We can't delete it directly , You will receive the following error ：

  
  
  

   
   
   [email protected]=>drop database db03;ERROR: database "db03" is being accessed by other usersDETAIL: There is 1 other session using the database.
  
  
  

therefore , We need to disable the session from connecting to the Library , Only when all currently connected sessions are disconnected at the same time .

Here are the specific operation methods ：

1、 Set the database to prohibit connection

  
  
  

   
   
   UPDATE pg_database SET datallowconn = 'false' WHERE datname = 'db_name';
  
  
  

2、 Interrupt all connection sessions in the current library

  
  
  

   
   
   SELECT pg_terminate_backend(pid) FROM pg_stat_activity WHERE datname = 'db_name';
  
  
  

3、 Delete database

  
  
  

   
   
   drop database db_name;
  
  
  

If you are satisfied with the answer , Please click the adopt button ！

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Other answers 1：

stay PostgreSQL in , If a library is being used , We can't delete it directly , You will receive the following error ：

  

   [email protected]=>drop database db03;ERROR: database "db03" is being accessed by other usersDETAIL: There is 1 other session using the database.
  

therefore , We need to disable the session from connecting to the Library , Only when all currently connected sessions are disconnected at the same time .

Here are the specific operation methods ：

1、 Set the database to prohibit connection

  

   UPDATE pg_database SET datallowconn = 'false' WHERE datname = 'db_name';
  

2、 Interrupt all connection sessions in the current library

  

   SELECT pg_terminate_backend(pid) FROM pg_stat_activity WHERE datname = 'db_name';
  

3、 Delete database

  

   drop database db_name;
  

If you are satisfied with the answer , Please click the adopt button ！

Other answers 2：

Yes tdsql？