Connection string
In this article we are going to delve into the fascinating world of Connection string, exploring its various facets and meanings. Connection string is a topic that has captured the attention of people around the world, generating extensive debate and analysis. From its origin to its evolution over the years, Connection string has been the subject of study in different fields, awakening curiosity and interest in experts and amateurs alike. Through this exploration, we hope to shed light on the multiple dimensions of Connection string and offer an in-depth analysis that enriches the understanding of this phenomenon.
In computing, a connection string is a string that specifies information about a data source and the means of connecting to it. It is passed in code to an underlying driver or provider in order to initiate the connection. Whilst commonly used for a database connection, the data source could also be a spreadsheet or text file.
The connection string may include attributes such as the name of the driver, server and database, as well as security information such as user name and password.
Examples
This example shows a PostgreSQL connection string for connecting to wikipedia.com with SSL and a connection timeout of 180 seconds:
DRIVER={PostgreSQL Unicode};SERVER=www.wikipedia.com;SSL=true;SSLMode=require;DATABASE=wiki;UID=wikiuser;Connect Timeout=180;PWD=ashiknoor
Users of Oracle databases can specify connection strings:
- on the command line (as in:
sqlplus scott/tiger@connection_string) - via environment variables (
$TWO_TASKin Unix-like environments;%TWO_TASK%in Microsoft Windows environments)[1] - in local configuration files (such as the default
$ORACLE_HOME/network/admin.tnsnames.ora)[2] - in LDAP-capable directory services
See also
References
- ^
Watt, Simon; et al. (June 2005). "Configuring SQL*Plus". SQL*Plus User's Guide and Reference: Release 10.2. Redwood City: Oracle Corporation. Retrieved 26 August 2010.
LOCAL Windows environment variable to specify a connection string. Performs the same function as TWO_TASK on UNIX.
- ^
Kyte, Thomas (2005). Expert Oracle database architecture: 9i and 10g programming techniques and solutions. Apress series. Apress. p. 60. ISBN 978-1-59059-530-5. Retrieved 26 August 2010.
The TNS connection string tells the Oracle software how to connect to the remote database. Generally, the client software will read a file called
tnsnames.ora. This is a plaint-text configuration file commonly found in the \network\admin directory ( represents the full path to your Oracle installation directory).
External links
- "Connection strings in SQL Server 2017". Retrieved 15 June 2019.
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