How do you connect to a database in UNIX shell script?
The first thing you have to do to connect to oracle database in unix machine is to install oracle database drivers on the unix box. Once you installed, test whether you are able to connect to the database from command prompt or not. If you are able to connect to the database, then everything is going fine.
How do I connect to a SQL database in Unix?
SQL*Plus Command-line Quick Start for UNIX
- Open a UNIX terminal.
- At the command-line prompt, enter the SQL*Plus command in the form: $> sqlplus.
- When prompted, enter your Oracle9i username and password. …
- SQL*Plus starts and connects to the default database.
How do I connect MySQL database to Unix shell script?
# MYSQL CONFIG VARIABLES $platform = “mysql”; $host = “<your db server ip>”; $database = “<db name>”; $org_table = “<table name>”; $user = “<username>”; $pw = “<password>”; # DATA SOURCE NAME $dsn = “dbi:$platform:$database:$host:$port”; # PERL DBI CONNECT $connect = DBI->connect($dsn, $user, $pw);
How do you execute a SQL query in a shell script?
To run a SQL script using SQL*Plus, place the SQL along with any SQL*Plus commands in a file and save it on your operating system. For example, save the following script in a file called “C:emp. sql”. CONNECT scott/tiger SPOOL C:emp.
What is shell script in Unix?
A shell script is a computer program designed to be run by the Unix shell, a command-line interpreter. The various dialects of shell scripts are considered to be scripting languages. Typical operations performed by shell scripts include file manipulation, program execution, and printing text.
What is spool in shell script?
Using the Oracle spool command
The “spool” command is used within SQL*Plus to direct the output of any query to a server-side flat file. SQL> spool /tmp/myfile.lst. Becuse the spool command interfaces with the OS layer, the spool command is commonly used within Oracle shell scripts.
How do I connect to a database in terminal?
To access a specific database, type the following command at the mysql> prompt, replacing dbname with the name of the database that you want to access: use dbname; Make sure you do not forget the semicolon at the end of the statement. After you access a database, you can run SQL queries, list tables, and so on.
How do I connect to Oracle database?
Connecting to Oracle Database from SQL*Plus
- If you are on a Windows system, display a Windows command prompt.
- At the command prompt, type sqlplus and press the key Enter. SQL*Plus starts and prompts you for your user name.
- Type your user name and press the key Enter. …
- Type your password and press the key Enter.
How do I connect to Sqlplus?
Starting SQL*Plus Command-line
- Open a UNIX or a Windows terminal and enter the SQL*Plus command: sqlplus.
- When prompted, enter your Oracle Database username and password. …
- Alternatively, enter the SQL*Plus command in the form: sqlplus username/password. …
- SQL*Plus starts and connects to the default database.
What is MySQL shell?
MySQL Shell is an advanced client and code editor for MySQL. This document describes the core features of MySQL Shell. In addition to the provided SQL functionality, similar to mysql, MySQL Shell provides scripting capabilities for JavaScript and Python and includes APIs for working with MySQL.
How do you assign the output of an SQL query to a Unix variable?
In first command you assign output of date command in “var” variable! $() or “ means assign the output of command. And in the second command you print value of the “var” variable. Now for your SQL query.
What are the commands in MySQL?
MySQL Commands
- SELECT — extracts data from a database. …
- UPDATE — updates data in a database. …
- DELETE — deletes data from a database. …
- INSERT INTO — inserts new data into a database. …
- CREATE DATABASE — creates a new database. …
- ALTER DATABASE — modifies a database. …
- CREATE TABLE — creates a new table. …
- ALTER TABLE — modifies a table.
How do I run a SQL query in Linux?
Create a sample database
- On your Linux machine, open a bash terminal session.
- Use sqlcmd to run a Transact-SQL CREATE DATABASE command. Bash Copy. /opt/mssql-tools/bin/sqlcmd -S localhost -U SA -Q ‘CREATE DATABASE SampleDB’
- Verify the database is created by listing the databases on your server. Bash Copy.
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How do I run a Sqlplus script from the command line?
Running a Script as You Start SQL*Plus
- Follow the SQLPLUS command with your username, a slash, a space, @, and the name of the file: SQLPLUS HR @SALES. SQL*Plus starts, prompts for your password and runs the script.
- Include your username as the first line of the file. Follow the SQLPLUS command with @ and the filename.
How do I run a SQL script in Linux terminal?
Please follow below steps.
- Open Terminal and type mysql -u to Open the MySQL command line.
- Type the path of your mysql bin directory and press Enter.
- Paste your SQL file inside the bin folder of mysql server.
- Create a database in MySQL.
- Use that particular database where you want to import the SQL file.