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https://github.com/sigmasternchen/php-doc-en
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a56106f691
git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@317502 c90b9560-bf6c-de11-be94-00142212c4b1
335 lines
9.5 KiB
XML
335 lines
9.5 KiB
XML
<?xml version="1.0" encoding="utf-8"?>
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<!-- $Revision$ -->
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<refentry xml:id="function.ingres-query" xmlns="http://docbook.org/ns/docbook">
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<refnamediv>
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<refname>ingres_query</refname>
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<refpurpose>Send an SQL query to Ingres</refpurpose>
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</refnamediv>
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<refsect1 role="description">
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&reftitle.description;
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<methodsynopsis>
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<type>mixed</type><methodname>ingres_query</methodname>
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<methodparam><type>resource</type><parameter>link</parameter></methodparam>
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<methodparam><type>string</type><parameter>query</parameter></methodparam>
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<methodparam choice="opt"><type>array</type><parameter>params</parameter></methodparam>
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<methodparam choice="opt"><type>string</type><parameter>types</parameter></methodparam>
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</methodsynopsis>
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<para>
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<function>ingres_query</function> sends the given
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<parameter>query</parameter> to the Ingres server.
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</para>
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<para>
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The query becomes part of the currently open transaction. If
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there is no open transaction, <function>ingres_query</function>
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opens a new transaction. To close the transaction, you can
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call either <function>ingres_commit</function> to commit the changes
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made to the database or <function>ingres_rollback</function> to
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cancel these changes. When the script ends, any open transaction
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is rolled back (by calling
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<function>ingres_rollback</function>). You can also use
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<function>ingres_autocommit</function> before opening a new
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transaction to have every SQL query immediately committed.
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</para>
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<note>
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<title>Related Configurations</title>
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<para>
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See also the <link linkend="ini.ingres.describe">ingres.describe</link>,
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<link linkend="ini.ingres.scrollable">ingres.scrollable</link> and
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<link linkend="ini.ingres.utf8">ingres.utf8</link> directives in
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<link linkend="ingres.configuration">Runtime Configuration</link>
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</para>
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</note>
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</refsect1>
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<refsect1 role="parameters">
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&reftitle.parameters;
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<para>
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<variablelist>
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<varlistentry>
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<term><parameter>link</parameter></term>
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<listitem>
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<para>
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The connection link identifier.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry xml:id="function.ingres-query.query">
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<term><parameter>query</parameter></term>
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<listitem>
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<para>
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A valid SQL query (see the Ingres <literal>SQL reference
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guide</literal>) in the Ingres documentation.
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</para>
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<para>
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Data inside the query should be <link
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linkend="function.ingres-escape-string">properly escaped</link>.
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</para>
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<para>
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The following types of SQL queries cannot be sent with this function:
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<itemizedlist>
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<listitem>
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<simpara>
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<literal>close</literal> (see <function>ingres_close</function>)
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</simpara>
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</listitem>
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<listitem>
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<simpara>
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<literal>commit</literal> (see <function>ingres_commit</function>)
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</simpara>
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</listitem>
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<listitem>
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<simpara>
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<literal>connect</literal> (see <function>ingres_connect</function>)
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</simpara>
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</listitem>
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<listitem>
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<simpara>
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<literal>disconnect</literal> (see <function>ingres_close</function>)
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</simpara>
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</listitem>
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<listitem>
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<simpara><literal>get dbevent</literal></simpara>
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</listitem>
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<listitem>
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<simpara><literal>prepare to commit</literal></simpara>
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</listitem>
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<listitem>
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<simpara>
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<literal>rollback</literal> (see <function>ingres_rollback</function>)
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</simpara>
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</listitem>
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<listitem><simpara><literal>savepoint</literal></simpara></listitem>
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<listitem>
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<simpara>
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<literal>set autocommit</literal> (see <function>ingres_autocommit</function>)
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</simpara>
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</listitem>
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<listitem>
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<simpara>all cursor-related queries are unsupported</simpara>
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</listitem>
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</itemizedlist>
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><parameter>params</parameter></term>
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<listitem>
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<para>
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An array of parameter values to be used with the query
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</para>
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</listitem>
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</varlistentry>
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<varlistentry xml:id="function.ingres-query.types">
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<term><parameter>types</parameter></term>
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<listitem>
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<para>
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A string containing a sequence of types for the parameter values
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passed. When <link linkend="ini.ingres.describe">ingres.describe</link>
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is enabled, this parameter can be ignored as the driver automatically
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fetches the expected parameter types from the server.
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</para>
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<informaltable>
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<tgroup cols="4">
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<thead>
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<row>
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<entry>Type code</entry>
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<entry>Ingres type</entry>
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</row>
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</thead>
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<tbody>
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<row>
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<entry>a</entry>
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<entry><type>BOOLEAN</type></entry>
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</row>
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<row>
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<entry>b</entry>
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<entry><type>BYTE</type></entry>
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</row>
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<row>
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<entry>B</entry>
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<entry><type>LONG BYTE/BLOB</type></entry>
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</row>
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<row>
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<entry>c</entry>
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<entry><type>CHAR</type></entry>
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</row>
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<row>
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<entry>d</entry>
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<entry><type>DATE/ANSIDATE/TIMESTAMP/TIME</type></entry>
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</row>
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<row>
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<entry>f</entry>
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<entry><type>FLOAT</type></entry>
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</row>
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<row>
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<entry>i</entry>
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<entry><type>INTEGER</type></entry>
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</row>
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<row>
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<entry>L</entry>
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<entry><type>LONG TEXT</type></entry>
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</row>
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<row>
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<entry>m</entry>
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<entry><type>MONEY</type></entry>
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</row>
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<row>
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<entry>M</entry>
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<entry><type>LONG NVARCHAR</type></entry>
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</row>
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<row>
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<entry>n</entry>
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<entry><type>NCHAR</type></entry>
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</row>
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<row>
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<entry>N</entry>
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<entry><type>NVARCHAR</type></entry>
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</row>
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<row>
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<entry>t</entry>
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<entry><type>TEXT</type></entry>
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</row>
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<row>
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<entry>v</entry>
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<entry><type>VARCHAR</type></entry>
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</row>
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<row>
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<entry>V</entry>
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<entry><type>LONG VARCHAR</type></entry>
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</row>
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</tbody>
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</tgroup>
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</informaltable>
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</listitem>
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</varlistentry>
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</variablelist>
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</para>
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</refsect1>
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<refsect1 role="returnvalues">
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&reftitle.returnvalues;
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<para>
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<function>ingres_query</function> returns a query result identifier on
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success else it returns &false;. To see if an error
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occurred use <function>ingres_errno</function>,
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<function>ingres_error</function> or
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<function>ingres_errsqlstate</function>.
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</para>
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</refsect1>
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<refsect1 role="examples">
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&reftitle.examples;
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<para>
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<example>
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<title>Send a simple select</title>
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<programlisting role="php">
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<![CDATA[
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<?php
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$link = ingres_connect("demodb");
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$result = ingres_query($link, "select * from user_profile");
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while ($row = ingres_fetch_row($result)) {
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echo $row[1];
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echo $row[2];
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}
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?>
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]]>
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</programlisting>
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</example>
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<example>
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<title>Passing query parameters to <function>ingres_query</function></title>
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<programlisting role="php">
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<![CDATA[
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<?php
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$link = ingres_connect("demodb");
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$params[] = "Emma";
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$query = "select * from user_profile where up_first = ?";
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$result = ingres_query($link, $query, $params);
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while ($row = ingres_fetch_row($result)) {
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echo $row[1];
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echo $row[2];
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}
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?>
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]]>
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</programlisting>
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</example>
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<example>
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<title>Inserting a BLOB with parameter types</title>
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<programlisting role="php">
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<![CDATA[
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<?php
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$link = ingres_connect("demodb");
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//Open a photo
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$fh = fopen("photo.jpg","r");
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$blob_data = stream_get_contents($fh);
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fclose($fh);
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//Prepare parameters
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$params[] = $blob_data;
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$params[] = 1201;
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//Define parameter types
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$param_types = "Bi";
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$query = "update user_profile set up_image = ? where up_id = ?";
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$result = ingres_query($link, $query , $params, $param_types);
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if (ingres_errno())
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{
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echo ingres_errno() . "-" . ingres_error() . "\n";
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}
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ingres_commit($link);
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ingres_close($link);
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?>
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]]>
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</programlisting>
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</example>
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</para>
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</refsect1>
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<refsect1 role="seealso">
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&reftitle.seealso;
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<para>
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<simplelist>
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<member><function>ingres_unbuffered_query</function></member>
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<member><function>ingres_fetch_array</function></member>
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<member><function>ingres_fetch_assoc</function></member>
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<member><function>ingres_fetch_object</function></member>
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<member><function>ingres_fetch_row</function></member>
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<member><function>ingres_commit</function></member>
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<member><function>ingres_rollback</function></member>
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<member><function>ingres_autocommit</function></member>
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<member><function>ingres_set_environment</function></member>
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<member><function>ingres_errno</function></member>
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<member><function>ingres_error</function></member>
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</simplelist>
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</para>
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</refsect1>
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</refentry>
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<!-- Keep this comment at the end of the file
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Local variables:
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mode: sgml
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sgml-omittag:t
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sgml-shorttag:t
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sgml-minimize-attributes:nil
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sgml-always-quote-attributes:t
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sgml-indent-step:1
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sgml-indent-data:t
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indent-tabs-mode:nil
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sgml-parent-document:nil
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sgml-default-dtd-file:"~/.phpdoc/manual.ced"
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sgml-exposed-tags:nil
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sgml-local-catalogs:nil
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sgml-local-ecat-files:nil
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End:
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vim600: syn=xml fen fdm=syntax fdl=2 si
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vim: et tw=78 syn=sgml
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vi: ts=1 sw=1
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-->
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