Updated March 29, 2023
Introduction to sqlplus in linux
Sqlplus is an Oracle command-line program for running SQL and PL/SQL operations; one of the most popular activities is connecting to sqlplus from a Linux computer to obtain data, so sqlplus becomes an important tool in shell scripting the Oracle data to be retrieved could be a single column value from a database or a collection of data from multiple tables it describes the many methods for connecting to sqlplus from the shell and retrieving data it’s used to run the same set of instructions in the SQL Server database on a regular basis with scheduled queries.
What is sqlplus in Linux?
The Sqlplus is an Oracle command-line program for running SQL and PL/SQL operations. One of the most common activities is connecting to sqlplus from a Linux computer to retrieve data, so sqlplus becomes an important tool in shell scripting. The Oracle data has to be retrieved that it could be a single column value from a database or a collection of data from multiple tables. It has some different types of processing and interfaces for performing the user tasks in the system.
Step by Step guide
It has different types of concepts and features for implementing the data operations from the user end to the application end. Like that some of them are followed,
Batch and interactive SQL processing
SQL*Plus is the most important part for executing Structured Query Language, and Procedural Language extensions SQL commands. We can use the SQL as (CLI) or other Database GUI in the SQL Developer. It also focuses for utilising the database engines in the two primary interfaces. It has a lot of additional commercial solutions available from different vendors that allow you to utilize Databases like Microsoft SQL, etc., to cover the batch and interactive sql processing datas.
SQL*Plus GUI and CLI
It is one of the client software that allows you to construct and other interactive database statements with batch process. Mainly it has followed that we will see them when its first starts using database environments. The SQL*Plus is accessed from the command line after the Database is installed. It may be any of the database like Microsoft, Oracle, etc. It also locates that the installed folder by the SQLPLUS directory it will be executable with the specified location that will be mentioned using the system environment variable ($PATH in the Linux Operating System), it works, but it must be configured on the Linux during installation. The preceding connect string might use IPC or the network to connect to the database by specifying a legitimate net service name for connecting the network. Unlike other SQL settings, the database environment is not just for running SQL statements; it was created as a SQL report writer. This means SQL*Plus has a lot of features that make it a more user-friendly and useful environment. A collection of various designed type formatting extensions that will allow for to format and calculate the sum and aggregate result set data as the example of these nicer and useful features.
It also allows you to modify files interactively from the command line interface and changes reflected in the database parallelly on the backend. The dynamically create the environment for each set of connections through configure via SQL*Plus to remember the settings for each connection and explore the features through via interactive collections that help the data menus and shell out of or exit the database environment after the user operations. While setting up a SQL*Plus Environment, There are two ways to set up the Sqlplus setup. One of them necessitates that we can setup it every time as the task schedule for each session with a random manner. And the second one it requires for to set up a configuration file that is mapped, and if it has any backlogs, it will be stored as the folder logs it checks and validate the database connection. Then the config files will be modified based on the user requirement; it comes with the provision for doing any modifications to become universal growth for all Database installations with the user’s environment. Furthermore, these changes can only be made by the database user account’s.
Every SQL*Plus connection can be customised one and some of the developers like to type the instructions wherever it needs and go, with others prefer to place them in the script files. So before we can put them in the script files, it should be configured first, then figure out what options we have. With this term ALL, the SQL*Plus SHOW command is used for to find all of them.
How to Install SQL PLUS in Linux?
It has the following ways for to install the SQL Plus in Linux OS,
- First, we need to install the SQL Plus Client for to download the officially web page. Please confirm 64 and 32-bit confirmation.
- After downloading zip files, then make the directory using the mkdir command,
- Like mkdir -p /opt/oracle
- We can also unzip the files using unzip command, unzip -d /vars/db file.zip
- If we want to list all the files which is mapped on the same directory using the below command,
- $cd /vars/db && find. -type f | sort ./filename
- Then we can set the library path and environment path using the ~/. bashsrc or /. Kshsrc etc
- The bashsrc, Kshsrc, these directories are the source file directory after that, we can run the sqlplus -v to confirm the installation.
- If we want to use any of the database studios like Microsoft SQL or Oracle studio, we must configure the file like an oracle.conf file.
- Mainly we can edit the configuration file for changing and adding the path like /usr/lib/oracle10/src/bin/ etc. It may vary depending on the oracle client we used in the application; for different versions, we must specify and change the path for every set of folders.
The command-line interface for interacting with the database is SQL*Plus it allows for to execute almost any administrative operation that can be used for the user operations it may be think of it. It should be different for the modules that generate the SQL Plus operations like report generations and script Executions.
This is a guide to sqlplus in Linux. Here we discuss How to Install SQL PLUS in Linux and the different concepts and features. You may also have a look at the following articles to learn more –