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>ocinewdescriptor</H1
><DIV
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><A
NAME="AEN155211"
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><P
> (PHP 3 >= 3.0.7, PHP 4, PHP 5)</P
>ocinewdescriptor --
Inicializa um novo descritor LOB ou FILE vazios
</DIV
><DIV
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><A
NAME="AEN155214"
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><H2
>Descrição</H2
>object <B
CLASS="methodname"
>ocinewdescriptor</B
> ( resource connection [, int type] )<BR
></BR
><P
> <B
CLASS="function"
>ocinewdescriptor()</B
> destina armazenagem para segurar descritores
ou LOB localizador. Valores válidos para
<CODE
CLASS="parameter"
>type</CODE
> são <TT
CLASS="constant"
><B
>OCI_D_FILE</B
></TT
>,
<TT
CLASS="constant"
><B
>OCI_D_LOB</B
></TT
> and <TT
CLASS="constant"
><B
>OCI_D_ROWID</B
></TT
>.
Para LOB descritores, os métodos para carregar, salvar, e salvar arquivo são
associados com o descritor, para BFILE somente o método de carregamento existe.
Veja o segundo exemplo usando hints.
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></A
><P
><B
>Exemplo 1. <B
CLASS="function"
>ocinewdescriptor()</B
> example</B
></P
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><TD
><code><font color="#000000">
<font color="#0000BB"><?php <br /> </font><font color="#FF8000">/* This script is designed to be called from a HTML form.<br /> * It expects $user, $password, $table, $where, and $commitsize<br /> * to be passed in from the form. The script then deletes<br /> * the selected rows using the ROWID and commits after each<br /> * set of $commitsize rows. (Use with care, there is no rollback)<br /> */<br /> </font><font color="#0000BB">$conn </font><font color="#007700">= </font><font color="#0000BB">OCILogon</font><font color="#007700">(</font><font color="#0000BB">$user</font><font color="#007700">, </font><font color="#0000BB">$password</font><font color="#007700">);<br /> </font><font color="#0000BB">$stmt </font><font color="#007700">= </font><font color="#0000BB">OCIParse</font><font color="#007700">(</font><font color="#0000BB">$conn</font><font color="#007700">,</font><font color="#DD0000">"select rowid from $table $where"</font><font color="#007700">);<br /> </font><font color="#0000BB">$rowid </font><font color="#007700">= </font><font color="#0000BB">OCINewDescriptor</font><font color="#007700">(</font><font color="#0000BB">$conn</font><font color="#007700">,</font><font color="#0000BB">OCI_D_ROWID</font><font color="#007700">);<br /> </font><font color="#0000BB">OCIDefineByName</font><font color="#007700">(</font><font color="#0000BB">$stmt</font><font color="#007700">,</font><font color="#DD0000">"ROWID"</font><font color="#007700">,&</font><font color="#0000BB">$rowid</font><font color="#007700">); <br /> </font><font color="#0000BB">OCIExecute</font><font color="#007700">(</font><font color="#0000BB">$stmt</font><font color="#007700">);<br /> while ( </font><font color="#0000BB">OCIFetch</font><font color="#007700">(</font><font color="#0000BB">$stmt</font><font color="#007700">) ) { <br /> </font><font color="#0000BB">$nrows </font><font color="#007700">= </font><font color="#0000BB">OCIRowCount</font><font color="#007700">(</font><font color="#0000BB">$stmt</font><font color="#007700">);<br /> </font><font color="#0000BB">$delete </font><font color="#007700">= </font><font color="#0000BB">OCIParse</font><font color="#007700">(</font><font color="#0000BB">$conn</font><font color="#007700">,</font><font color="#DD0000">"delete from $table where ROWID = :rid"</font><font color="#007700">);<br /> </font><font color="#0000BB">OCIBindByName</font><font color="#007700">(</font><font color="#0000BB">$delete</font><font color="#007700">,</font><font color="#DD0000">":rid"</font><font color="#007700">,&</font><font color="#0000BB">$rowid</font><font color="#007700">,-</font><font color="#0000BB">1</font><font color="#007700">,</font><font color="#0000BB">OCI_B_ROWID</font><font color="#007700">);<br /> </font><font color="#0000BB">OCIExecute</font><font color="#007700">(</font><font color="#0000BB">$delete</font><font color="#007700">); <br /> print </font><font color="#DD0000">"$nrows</font><font color="#007700">\n</font><font color="#DD0000">"</font><font color="#007700">;<br /> if ( (</font><font color="#0000BB">$nrows </font><font color="#007700">% </font><font color="#0000BB">$commitsize</font><font color="#007700">) == </font><font color="#0000BB">0 </font><font color="#007700">) {<br /> </font><font color="#0000BB">OCICommit</font><font color="#007700">(</font><font color="#0000BB">$conn</font><font color="#007700">); <br /> } <br /> }<br /> </font><font color="#0000BB">$nrows </font><font color="#007700">= </font><font color="#0000BB">OCIRowCount</font><font color="#007700">(</font><font color="#0000BB">$stmt</font><font color="#007700">); <br /> print </font><font color="#DD0000">"$nrows deleted...</font><font color="#007700">\n</font><font color="#DD0000">"</font><font color="#007700">;<br /> </font><font color="#0000BB">OCIFreeStatement</font><font color="#007700">(</font><font color="#0000BB">$stmt</font><font color="#007700">); <br /> </font><font color="#0000BB">OCILogoff</font><font color="#007700">(</font><font color="#0000BB">$conn</font><font color="#007700">);<br /></font><font color="#0000BB">?></font>
</font>
</code></TD
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><code><font color="#000000">
<font color="#0000BB"><?php<br /> </font><font color="#FF8000">/* This script demonstrates file upload to LOB columns<br /> * The formfield used for this example looks like this<br /> * <form action="upload.php" method="POST" enctype="multipart/form-data"><br /> * <input type="file" name="lob_upload"><br /> * ...<br /> */<br /> </font><font color="#007700">if(!isset(</font><font color="#0000BB">$lob_upload</font><font color="#007700">) || </font><font color="#0000BB">$lob_upload </font><font color="#007700">== </font><font color="#DD0000">'none'</font><font color="#007700">){<br /></font><font color="#0000BB">?><br /></font><form action="upload.php" method="POST" enctype="multipart/form-data"><br />Upload file: <input type="file" name="lob_upload"><br><br /><input type="submit" value="Upload"> - <input type="reset"><br /></form><br /><font color="#0000BB"><?php<br /> </font><font color="#007700">} else {<br /><br /> </font><font color="#FF8000">// $lob_upload contains the temporary filename of the uploaded file<br /><br /> // see also the features section on file upload,<br /> // if you would like to use secure uploads<br /> <br /> </font><font color="#0000BB">$conn </font><font color="#007700">= </font><font color="#0000BB">OCILogon</font><font color="#007700">(</font><font color="#0000BB">$user</font><font color="#007700">, </font><font color="#0000BB">$password</font><font color="#007700">);<br /> </font><font color="#0000BB">$lob </font><font color="#007700">= </font><font color="#0000BB">OCINewDescriptor</font><font color="#007700">(</font><font color="#0000BB">$conn</font><font color="#007700">, </font><font color="#0000BB">OCI_D_LOB</font><font color="#007700">);<br /> </font><font color="#0000BB">$stmt </font><font color="#007700">= </font><font color="#0000BB">OCIParse</font><font color="#007700">(</font><font color="#0000BB">$conn</font><font color="#007700">,</font><font color="#DD0000">"insert into $table (id, the_blob) <br /> values(my_seq.NEXTVAL, EMPTY_BLOB()) returning the_blob into :the_blob"</font><font color="#007700">);<br /> </font><font color="#0000BB">OCIBindByName</font><font color="#007700">(</font><font color="#0000BB">$stmt</font><font color="#007700">, </font><font color="#DD0000">':the_blob'</font><font color="#007700">, &</font><font color="#0000BB">$lob</font><font color="#007700">, -</font><font color="#0000BB">1</font><font color="#007700">, </font><font color="#0000BB">OCI_B_BLOB</font><font color="#007700">);<br /> </font><font color="#0000BB">OCIExecute</font><font color="#007700">(</font><font color="#0000BB">$stmt</font><font color="#007700">, </font><font color="#0000BB">OCI_DEFAULT</font><font color="#007700">);<br /> if(</font><font color="#0000BB">$lob</font><font color="#007700">-></font><font color="#0000BB">savefile</font><font color="#007700">(</font><font color="#0000BB">$lob_upload</font><font color="#007700">)){<br /> </font><font color="#0000BB">OCICommit</font><font color="#007700">(</font><font color="#0000BB">$conn</font><font color="#007700">);<br /> echo </font><font color="#DD0000">"Blob successfully uploaded\n"</font><font color="#007700">;<br /> }else{<br /> echo </font><font color="#DD0000">"Couldn't upload Blob\n"</font><font color="#007700">;<br /> }<br /> </font><font color="#0000BB">OCIFreeDesc</font><font color="#007700">(</font><font color="#0000BB">$lob</font><font color="#007700">);<br /> </font><font color="#0000BB">OCIFreeStatement</font><font color="#007700">(</font><font color="#0000BB">$stmt</font><font color="#007700">);<br /> </font><font color="#0000BB">OCILogoff</font><font color="#007700">(</font><font color="#0000BB">$conn</font><font color="#007700">);<br /> }<br /></font><font color="#0000BB">?></font>
</font>
</code></TD
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>
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><DIV
CLASS="example"
><A
NAME="AEN155237"
></A
><P
><B
>Exemplo 2. <B
CLASS="function"
>ocinewdescriptor()</B
> second example</B
></P
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><code><font color="#000000">
<font color="#0000BB"><?php <br /> </font><font color="#FF8000">/* Calling PL/SQL stored procedures which contain clobs as input<br /> * parameters (PHP 4 >= 4.0.6). <br /> * Example PL/SQL stored procedure signature is:<br /> *<br /> * PROCEDURE save_data<br /> * Argument Name Type In/Out Default?<br /> * ------------------------------ ----------------------- ------ --------<br /> * KEY NUMBER(38) IN<br /> * DATA CLOB IN<br /> *<br /> */<br /><br /> </font><font color="#0000BB">$conn </font><font color="#007700">= </font><font color="#0000BB">OCILogon</font><font color="#007700">(</font><font color="#0000BB">$user</font><font color="#007700">, </font><font color="#0000BB">$password</font><font color="#007700">);<br /> </font><font color="#0000BB">$stmt </font><font color="#007700">= </font><font color="#0000BB">OCIParse</font><font color="#007700">(</font><font color="#0000BB">$conn</font><font color="#007700">, </font><font color="#DD0000">"begin save_data(:key, :data); end;"</font><font color="#007700">);<br /> </font><font color="#0000BB">$clob </font><font color="#007700">= </font><font color="#0000BB">OCINewDescriptor</font><font color="#007700">(</font><font color="#0000BB">$conn</font><font color="#007700">, </font><font color="#0000BB">OCI_D_LOB</font><font color="#007700">);<br /> </font><font color="#0000BB">OCIBindByName</font><font color="#007700">(</font><font color="#0000BB">$stmt</font><font color="#007700">, </font><font color="#DD0000">':key'</font><font color="#007700">, </font><font color="#0000BB">$key</font><font color="#007700">);<br /> </font><font color="#0000BB">OCIBindByName</font><font color="#007700">(</font><font color="#0000BB">$stmt</font><font color="#007700">, </font><font color="#DD0000">':data'</font><font color="#007700">, </font><font color="#0000BB">$clob</font><font color="#007700">, -</font><font color="#0000BB">1</font><font color="#007700">, </font><font color="#0000BB">OCI_B_CLOB</font><font color="#007700">);<br /> </font><font color="#0000BB">$clob</font><font color="#007700">-></font><font color="#0000BB">WriteTemporary</font><font color="#007700">(</font><font color="#0000BB">$data</font><font color="#007700">);<br /> </font><font color="#0000BB">OCIExecute</font><font color="#007700">(</font><font color="#0000BB">$stmt</font><font color="#007700">, </font><font color="#0000BB">OCI_DEFAULT</font><font color="#007700">);<br /> </font><font color="#0000BB">OCICommit</font><font color="#007700">(</font><font color="#0000BB">$conn</font><font color="#007700">);<br /> </font><font color="#0000BB">$clob</font><font color="#007700">-></font><font color="#0000BB">close</font><font color="#007700">();<br /> </font><font color="#0000BB">$clob</font><font color="#007700">-></font><font color="#0000BB">free</font><font color="#007700">();<br /> </font><font color="#0000BB">OCIFreeStatement</font><font color="#007700">(</font><font color="#0000BB">$stmt</font><font color="#007700">);<br /></font><font color="#0000BB">?></font>
</font>
</code></TD
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