
Database Tutorials
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Database Tutorials features articles on MSSQL, Oracle, PostgreSQL, MySQL, MariaDB, DB2, Sybase, Teradata, Big Data, NOSQL, MongoDB, Couchbase, Cassandra, Windows, Linux and more...
Database Tutorials
1h ago
In today’s article, we will discuss PostgreSQL USER EXPIRE. In PostgreSQL, a password must expire to prevent a user from logging in after a specified period. This mechanism is essential for enhancing security and managing user access according to defined policies. You can increase or decrease the expiration period by +/- days for all users …
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Database Tutorials
1w ago
In today’s article, we will be explaining the “ps” command, which is the command we use to monitor running processes in Linux. 1. When run without parameters, it lists the running processes of the existing session. [crayon-67a4cf1890677554945438/] 2. Usage of ps command with parameters; ps -ef ps -elf (Provides detailed information about operations.) 3. If …
The post Linux Ps Command first appeared on Database Tutorials.
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Database Tutorials
2w ago
In today’s article, we will explain how to change the owner while creating or after creating a Postgresql schema. If you have created a schema in PostgreSQL but have not changed its owner, or if you want to specify a different owner while creating the schema, you can follow the steps below. To change the …
The post How To Change Schema Owner In PostgreSQL? first appeared on Database Tutorials.
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Database Tutorials
3w ago
In today’s article, we will be learne the vmstat command, which is the system performance monitoring command in Linux. 1. if #vmstat is used without parameters, shows the virtual memory usage since the last time the system was running. [crayon-67921efb02d69504823775/] 2. It is usually used with two parameters. The first parameter is the sampling time …
The post Vmstat Command In Linux first appeared on Database Tutorials.
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Database Tutorials
1M ago
In today’s article, we will explain how to change the OWNER when creating a database and after it has been created in PostgreSQL. PostgreSQL provides an ALTER DATABASE command that allows us to modify a database. For instance, using ALTER DATABASE command, you can alter the database name, attributes, owner, etc. In Postgres, the ALTER …
The post How to Change Database OWNER in PostgreSQL first appeared on Database Tutorials.
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Database Tutorials
1M ago
In this tutorial, we will learn to use the top(table of processes) command in Linux and see some practical examples. The top command shows a dynamic, real-time view of running processes and kernel-managed tasks in Linux. The command also provides a system information summary that shows resource utilization, including CPU and memory usage. Syntax [crayon-67867c89be50a204218490/] …
The post Linux Top Command first appeared on Database Tutorials.
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Database Tutorials
1M ago
In today’s article, we will explain the PostgreSQL role authentication methods, including trust, md5, sha256, and ident on pg_hba.conf. Authentication in PostgreSQL involves the use of both pg_hba.conf and postgresql.conf. To connect a user to PostgreSQL, the system first checks the pg_hba.conf file. Based on the method defined there, authentication is performed. If authentication is …
The post PostgreSQL Role Authentication Methods first appeared on Database Tutorials.
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Database Tutorials
1M ago
In today’s article, we will learn how to Add Data File to Tablespace with queries step by step. 1. Columns and data types are learned from dba_data_files. You can learn whether dba_data_files is a view or a table as follows. In TOAD, we write dba_data_files on the editor screen and hold down Ctrl while moving …
The post Add Data File to Tablespace first appeared on Database Tutorials.
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Database Tutorials
1M ago
In today’s article, we will explain how to increase a tablespace in an Oracle Database after determining the sizes of the Disk Groups. When increasing the tablespace size, it is important to review the available disk space where our data files are stored. Checking the size of Disk Groups: If we are using ASM (Automatic …
The post Increasing Tablespace In Oracle Database first appeared on Database Tutorials.
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Database Tutorials
1M ago
In today’s article, we will explain how to identify the growth of the “msdb” system database, which is one of the system databases in SQL Server and may experience growth under certain circumstances. With the help of the query below, you can detect the growth in msdb and take action accordingly. [crayon-67794d8b7a925751403654/]
The post Msdb Database Growth Detection first appeared on Database Tutorials.
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