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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><title>R: Disconnect (close) a connection</title> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <link rel="stylesheet" type="text/css" href="R.css" /> </head><body> <table width="100%" summary="page for dbDisconnect {DBI}"><tr><td>dbDisconnect {DBI}</td><td style="text-align: right;">R Documentation</td></tr></table> <h2>Disconnect (close) a connection</h2> <h3>Description</h3> <p>This closes the connection, discards all pending work, and frees resources (e.g., memory, sockets). </p> <h3>Usage</h3> <pre> dbDisconnect(conn, ...) </pre> <h3>Arguments</h3> <table summary="R argblock"> <tr valign="top"><td><code>conn</code></td> <td> <p>A <a href="DBIConnection-class.html">DBIConnection</a> object, as returned by <code><a href="dbConnect.html">dbConnect()</a></code>.</p> </td></tr> <tr valign="top"><td><code>...</code></td> <td> <p>Other parameters passed on to methods.</p> </td></tr> </table> <h3>Value</h3> <p><code>dbDisconnect()</code> returns <code>TRUE</code>, invisibly. </p> <h3>Specification</h3> <p>A warning is issued on garbage collection when a connection has been released without calling <code>dbDisconnect()</code>, but this cannot be tested automatically. A warning is issued immediately when calling <code>dbDisconnect()</code> on an already disconnected or invalid connection. </p> <h3>See Also</h3> <p>Other DBIConnection generics: <code><a href="DBIConnection-class.html">DBIConnection-class</a></code>, <code><a href="dbAppendTable.html">dbAppendTable</a>()</code>, <code><a href="dbCreateTable.html">dbCreateTable</a>()</code>, <code><a href="dbDataType.html">dbDataType</a>()</code>, <code><a href="dbExecute.html">dbExecute</a>()</code>, <code><a href="dbExistsTable.html">dbExistsTable</a>()</code>, <code><a href="dbGetException.html">dbGetException</a>()</code>, <code><a href="dbGetInfo.html">dbGetInfo</a>()</code>, <code><a href="dbGetQuery.html">dbGetQuery</a>()</code>, <code><a href="dbIsReadOnly.html">dbIsReadOnly</a>()</code>, <code><a href="dbIsValid.html">dbIsValid</a>()</code>, <code><a href="dbListFields.html">dbListFields</a>()</code>, <code><a href="dbListObjects.html">dbListObjects</a>()</code>, <code><a href="dbListResults.html">dbListResults</a>()</code>, <code><a href="dbListTables.html">dbListTables</a>()</code>, <code><a href="dbReadTable.html">dbReadTable</a>()</code>, <code><a href="dbRemoveTable.html">dbRemoveTable</a>()</code>, <code><a href="dbSendQuery.html">dbSendQuery</a>()</code>, <code><a href="dbSendStatement.html">dbSendStatement</a>()</code>, <code><a href="dbWriteTable.html">dbWriteTable</a>()</code> </p> <h3>Examples</h3> <pre> con <- dbConnect(RSQLite::SQLite(), ":memory:") dbDisconnect(con) </pre> <hr /><div style="text-align: center;">[Package <em>DBI</em> version 1.1.0 <a href="00Index.html">Index</a>]</div> </body></html>