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 -- List all users present in mysql


mysql> select user,host,account_locked,password_expired from mysql.user;



Create user in mysql:


mysql> CREATE USER 'test_user'@'%' IDENTIFIED BY 'test_user';

Query OK, 0 rows affected (0.02 sec)


mysql> GRANT ALL ON *.* TO 'user'@'localhost';


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 Reading MSSQL DB data from Oracle 19c  database using DB link & ODBC Drivers  :

****************************************************************************

List of steps:

**************

1. Root - Install Microsoft SQL server ODBC drivers.

  sudo ACCEPT_EULA=Y yum install -y msodbcsql17

2. Root - Create ODBC entry i...


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 Linked Server in MS SQL Server

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Source : MS SQL 2019 EE on Windows 22

Target : Oracle 19c R2 EE on Linux 8 - IP - 192.168.56.74 Port- 1583 ServiceName- ORA_DB_19c


Pre-Req:

-----------


a. You must have Oracle client installed on MSSQL server.

b. Wor...


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 1.select 'grant usage on schema ' ||nspname||' to <new_group_name>;' from pg_catalog.pg_namespace 

where nspname not in ('public','pg_catalog','catalog_history','information_schema','dbainfo') and nspname not like 'pg_%';  ---1



2.select 'grant select,insert,update,delete on all tables in schema ' ||nspname||' to <new_...


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SQL script to change the ownership of schema, table ,procedure in AWS Redshift Database

1.change the ownership of schema


select 'alter schema ' ||nspname||' owner to "<new_schema_name>";' from pg_catalog.pg_namespace 

where nspname not in ('public','pg_catalog','catalog_history','information_schema','dbainfo'...


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