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<h1 class="refname">PDO_SQLSRV DSN</h1>
<p class="verinfo">(No version information available, might only be in SVN)</p><p class="refpurpose"><span class="refname">PDO_SQLSRV DSN</span> — <span class="dc-title">Connecting to MS SQL Server and SQL Azure databases</span></p>
</div>
<div class="refsect1 description" id="refsect1-ref.pdo-sqlsrv.connection-description">
<h3 class="title">Description</h3>
<p class="para">
The PDO_SQLSRV Data Source Name (DSN) is composed of the following elements:
<dl>
<dt>
<span class="term">DSN prefix</span>
<dd>
<p class="para">
The DSN prefix is <strong class="userinput"><code>sqlsrv:</code></strong>.
</p>
</dd>
</dt>
<dt>
<span class="term"><em>APP</em></span>
<dd>
<p class="para">
The application name used in tracing.
</p>
</dd>
</dt>
<dt>
<span class="term"><em>ConnectionPooling</em></span>
<dd>
<p class="para">
Specifies whether the connection is assigned from a connection pool
(1 or <strong><code>TRUE</code></strong>) or not (0 or <strong><code>FALSE</code></strong>).
</p>
</dd>
</dt>
<dt>
<span class="term"><em>Database</em></span>
<dd>
<p class="para">
The name of the database.
</p>
</dd>
</dt>
<dt>
<span class="term"><em>Encrypt</em></span>
<dd>
<p class="para">
Specifies whether the communication with SQL Server is encrypted
(1 or <strong><code>TRUE</code></strong>) or unencrypted (0 or <strong><code>FALSE</code></strong>).
</p>
</dd>
</dt>
<dt>
<span class="term"><em>Failover_Partner</em></span>
<dd>
<p class="para">
Specifies the server and instance of the database's mirror (if enabled
and configured) to use when the primary server is unavailable.
</p>
</dd>
</dt>
<dt>
<span class="term"><em>LoginTimeout</em></span>
<dd>
<p class="para">
Specifies the number of seconds to wait before failing the connection attempt.
</p>
</dd>
</dt>
<dt>
<span class="term"><em>MultipleActiveResultSets</em></span>
<dd>
<p class="para">
Disables or explicitly enables support for multiple active Result sets (MARS).
</p>
</dd>
</dt>
<dt>
<span class="term"><em>QuotedId</em></span>
<dd>
<p class="para">
Specifies whether to use SQL-92 rules for quoted identifiers (1 or <strong><code>TRUE</code></strong>)
or to use legacy Transact-SQL rules (0 or false).
</p>
</dd>
</dt>
<dt>
<span class="term"><em>Server</em></span>
<dd>
<p class="para">
The name of the database server.
</p>
</dd>
</dt>
<dt>
<span class="term"><em>TraceFile</em></span>
<dd>
<p class="para">
Specifies the path for the file used for trace data.
</p>
</dd>
</dt>
<dt>
<span class="term"><em>TraceOn</em></span>
<dd>
<p class="para">
Specifies whether ODBC tracing is enabled (1 or <strong><code>TRUE</code></strong>) or disabled
(0 or <strong><code>FALSE</code></strong>) for the connection being established.
</p>
</dd>
</dt>
<dt>
<span class="term"><em>TransactionIsolation</em></span>
<dd>
<p class="para">
Specifies the transaction isolation level. The accepted values for this
option are PDO::SQLSRV_TXN_READ_UNCOMMITTED, PDO::SQLSRV_TXN_READ_COMMITTED,
PDO::SQLSRV_TXN_REPEATABLE_READ, PDO::SQLSRV_TXN_SNAPSHOT, and
PDO::SQLSRV_TXN_SERIALIZABLE.
</p>
</dd>
</dt>
<dt>
<span class="term"><em>TrustServerCertificate</em></span>
<dd>
<p class="para">
Specifies whether the client should trust (1 or <strong><code>TRUE</code></strong>) or reject
(0 or <strong><code>FALSE</code></strong>) a self-signed server certificate.
</p>
</dd>
</dt>
<dt>
<span class="term"><em>WSID</em></span>
<dd>
<p class="para">
Specifies the name of the computer for tracing.
</p>
</dd>
</dt>
</dl>
</p>
</div>
<div class="refsect1 examples" id="refsect1-ref.pdo-sqlsrv.connection-examples">
<h3 class="title">Examples</h3>
<p class="para">
<div class="example" id="example-980">
<p><strong>Example #1 PDO_SQLSRV DSN examples</strong></p>
<div class="example-contents"><p>
The following example shows how to connecto to a specified MS SQL Server database:
<div class="example-contents">
<div class="cdata"><pre>
$c = new PDO("sqlsrv:Server=localhost;Database=testdb", "UserName", "Password");
</pre></div>
</div>
</p></div>
<div class="example-contents"><p>
The following example shows how to connect to a MS SQL Server database on
a specified port:
<div class="example-contents">
<div class="cdata"><pre>
$c = new PDO("sqlsrv:Server=localhost,1521;Database=testdb", "UserName", "Password");
</pre></div>
</div>
</p></div>
<div class="example-contents"><p>
The following example shows how to connecto to a SQL Azure database with
server ID 12345abcde. Note that when you connect to SQL Azure with PDO,
your username will be UserName@12345abcde (UserName@ServerId).
<div class="example-contents">
<div class="cdata"><pre>
$c = new PDO("sqlsrv:Server=12345abcde.database.windows.net;Database=testdb", "UserName@12345abcde", "Password");
</pre></div>
</div>
</p></div>
</div>
</p>
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