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# PDO_SQLSRV DSN

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PDO_SQLSRV DSN — Connecting to MS SQL Server and SQL Azure databases

### Opis

The PDO_SQLSRV Data Source Name (DSN) is composed of the following elements:

DSN prefix

  The DSN prefix is `sqlsrv:`.

APP

  The application name used in tracing.

ConnectionPooling

  Specifies whether the connection is assigned from a connection pool (1 or `TRUE`) or not (0 or `FALSE`).

Database

  The name of the database.

Encrypt

  Specifies whether the communication with SQL Server is encrypted (1 or `TRUE`) or unencrypted (0 or `FALSE`).

Failover_Partner

  Specifies the server and instance of the database's mirror (if enabled and configured) to use when the primary server is unavailable.

LoginTimeout

  Specifies the number of seconds to wait before failing the connection attempt.

MultipleActiveResultSets

  Disables or explicitly enables support for multiple active Result sets (MARS).

QuotedId

  Specifies whether to use SQL-92 rules for quoted identifiers (1 or `TRUE`) or to use legacy Transact-SQL rules (0 or false).

Server

  The name of the database server.

TraceFile

  Specifies the path for the file used for trace data.

TraceOn

  Specifies whether ODBC tracing is enabled (1 or `TRUE`) or disabled (0 or `FALSE`) for the connection being established.

TransactionIsolation

  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.

TrustServerCertificate

  Specifies whether the client should trust (1 or `TRUE`) or reject (0 or `FALSE`) a self-signed server certificate.

WSID

  Specifies the name of the computer for tracing.

### Przykłady

Przykład #1 PDO_SQLSRV DSN examples

The following example shows how to connecto to a specified MS SQL Server database:

    $c = new PDO("sqlsrv:Server=localhost;Database=testdb", "UserName", "Password");

The following example shows how to connect to a MS SQL Server database on a specified port:

    $c = new PDO("sqlsrv:Server=localhost,1521;Database=testdb", "UserName", "Password");

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).

    $c = new PDO("sqlsrv:Server=12345abcde.database.windows.net;Database=testdb", "UserName@12345abcde", "Password");

MS SQL Server (PDO)
Oracle (PDO)
MS SQL Server (PDO)
PHP Manual