wangwei
/
antliscence
forked from youys/ant

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<link rel="stylesheet" type="text/css" href="../stylesheets/style.css">
<title>SQL Task</title>
</head>
<body>

<h2><a name="sql">Sql</a></h2>
<h3>Description</h3>
<p>Executes a series of SQL statements via JDBC to a database. Statements can 
either be read in from a text file using the <i>src</i> attribute or from 
between the enclosing SQL tags.</p>

<p>Multiple statements can be provided, separated by semicolons (or the 
defined <i>delimiter</i>). Individual lines within the statements can be 
commented using either --, // or REM at the start of the line.</p>

<p>The <i>autocommit</i> attribute specifies whether auto-commit should be 
turned on or off whilst executing the statements. If auto-commit is turned 
on each statement will be executed and committed. If it is turned off the 
statements will all be executed as one transaction.</p>

<p>The <i>onerror</i> attribute specifies how to proceed when an error occurs 
during the execution of one of the statements. 
The possible values are: <b>continue</b> execution, only show the error;
<b>stop</b> execution, log the error but don't fail the task
and <b>abort</b> execution and transaction and fail task.</p>

<p>
<b>Proxies</b>. Some JDBC drivers (including the Oracle thin driver), 
    use the JVM's proxy settings to route their JDBC operations to the database.
    Since Ant1.7, Ant running on Java1.5 or later defaults to 
    <a href="../proxy.html">using
    the proxy settings of the operating system</a>. 
    Accordingly, the OS proxy settings need to be valid, or Ant's proxy
    support disabled with <code>-noproxy</code> option.
</p>

<h3>Parameters</h3>
<table border="1" cellpadding="2" cellspacing="0">
<tr>
  <td width="12%" valign="top"><b>Attribute</b></td>
  <td width="78%" valign="top"><b>Description</b></td>
  <td width="10%" valign="top"><b>Required</b></td>
</tr>
<tr>
  <td width="12%" valign="top">driver</td>
  <td width="78%" valign="top">Class name of the jdbc driver</td>
  <td width="10%" valign="top">Yes</td>
</tr>
<tr>
  <td width="12%" valign="top">url</td>
  <td width="78%" valign="top">Database connection url</td>
  <td width="10%" valign="top">Yes</td>
</tr>
<tr>
  <td width="12%" valign="top">userid</td>
  <td width="78%" valign="top">Database user name</td>
  <td width="10%" valign="top">Yes</td>
</tr>
<tr>
  <td width="12%" valign="top">password</td>
  <td width="78%" valign="top">Database password</td>
  <td width="10%" valign="top">Yes</td>
</tr>
<tr>
  <td width="12%" valign="top">src</td>
  <td width="78%" valign="top">File containing SQL statements</td>
  <td width="10%" valign="top">Yes, unless statements enclosed within tags</td>
</tr>
<tr>
  <td valign="top">encoding</td>
  <td valign="top">The encoding of the files containing SQL statements</td>
  <td align="center">No - defaults to default JVM encoding</td>
</tr>
<tr>
  <td width="12%" valign="top">delimiter</td>
  <td width="78%" valign="top">String that separates SQL statements</td>
  <td width="10%" valign="top">No, default &quot;;&quot;</td>
</tr>
<tr>
  <td width="12%" valign="top">autocommit</td>
  <td width="78%" valign="top">Auto commit flag for database connection (default false)</td>
  <td width="10%" valign="top">No, default &quot;false&quot;</td>
</tr>
<tr>
  <td width="12%" valign="top">print</td>
  <td width="78%" valign="top">Print result sets from the statements (default false)</td>
  <td width="10%" valign="top">No, default &quot;false&quot;</td>
</tr>
<tr>
  <td width="12%" valign="top">showheaders</td>
  <td width="78%" valign="top">Print headers for result sets from the statements (default true)</td>
  <td width="10%" valign="top">No, default &quot;true&quot;</td>
</tr>
<tr>
  <td width="12%" valign="top">showtrailers</td>
  <td width="78%" valign="top">Print trailer for number of rows affected (default true)</td>
  <td width="10%" valign="top">No, default &quot;true&quot;</td>
</tr>
<tr>
  <td width="12%" valign="top">output</td>
  <td width="78%" valign="top">Output file for result sets (defaults to System.out)</td>
  <td width="10%" valign="top">No (print to System.out by default)</td>
</tr>
  <tr>
    <td valign="top">append</td>
    <td valign="top">whether output should be appended to or overwrite
    an existing file.  Defaults to false.</td>
    <td align="center" valign="top">No</td>
  </tr>
<tr>
  <td width="12%" valign="top">classpath</td>
  <td width="78%" valign="top">Classpath used to load driver</td>
  <td width="10%" valign="top">No (use system classpath)</td>
</tr>
  <tr>
    <td width="12%" valign="top">classpathref</td>
    <td width="78%" valign="top">The classpath to use, given as a <a href="../using.html#references">reference</a> to a path defined elsewhere.</td>
  <td width="10%" valign="top">No (use system classpath)</td>
  </tr>
<tr>
  <td width="12%" valign="top">onerror</td>
  <td width="78%" valign="top">Action to perform when statement fails: continue, stop, abort</td>
  <td width="10%" valign="top">No, default &quot;abort&quot;</td>
</tr>
<tr>
  <td width="12%" valign="top">rdbms</td>
  <td width="78%" valign="top">Execute task only if this rdbms</td>
  <td width="10%" valign="top">No (no restriction)</td>
</tr>
<tr>
  <td width="12%" valign="top">version</td>
  <td width="78%" valign="top">Execute task only if rdbms version match</td>
  <td width="10%" valign="top">No (no restriction)</td>
</tr>
<tr>
  <td width="12%" valign="top">caching</td>
  <td width="78%" valign="top">Should the task cache loaders and the driver?</td>
  <td width="10%" valign="top">No (default=true)</td>
</tr>

<tr>
  <td width="12%" valign="top">delimitertype</td>
  <td width="78%" valign="top">Control whether the delimiter will only be recognized on a line by itself.<br>
    Can be "normal" -anywhere on the line, or "row", meaning it must be on a line by itself</td>
  <td width="10%" valign="top">No (default:normal)</td>
</tr>

<tr>
  <td width="12%" valign="top">keepformat</td>
  <td width="78%" valign="top">Control whether the format of the sql will be preserved.<br>
    Useful when loading packages and procedures.
  <td width="10%" valign="top">No (default=false)</td>
</tr>

<tr>
  <td width="12%" valign="top">escapeprocessing</td>
  <td width="78%" valign="top">Control whether the Java statement
    object will perform escape substitution.<br>
    See <a
    href="http://java.sun.com/j2se/1.4.2/docs/api/java/sql/Statement.html#setEscapeProcessing(boolean)">Statement's
    API docs</a> for details.  <em>Since Ant 1.6</em>.
  <td width="10%" valign="top">No (default=true)</td>
</tr>

<tr>
  <td width="12%" valign="top">expandproperties</td>
  <td width="78%" valign="top">Set to true to turn on property expansion in
  nested SQL, inline in the task or nested transactions. <em>Since Ant 1.7</em>.
  <td width="10%" valign="top">No (default=true)</td>
</tr>

<tr>
  <td width="12%" valign="top">rawblobs</td>
  <td width="78%" valign="top">If true, will write raw streams rather than hex encoding when
    printing BLOB results. <em>Since Ant 1.7.1</em>.</td>
  <td width="10%" valign="top">No, default <em>false</em></td>
</tr>

<tr>
  <td width="12%" valign="top">failOnConnectionError</td>
  <td width="78%" valign="top">If false, will only print a warning
    message and not execute any statement if the task fails to connect
    to the database.  <em>Since Ant 1.8.0</em>.</td>
  <td width="10%" valign="top">No, default <em>true</em></td>
</tr>
</table>

<h3>Parameters specified as nested elements</h3>
<h4>transaction</h4>
<p>Use nested <code>&lt;transaction&gt;</code> 
elements to specify multiple blocks of commands to the executed
executed in the same connection but different transactions. This
is particularly useful when there are multiple files to execute
on the same schema.</p>
<table border="1" cellpadding="2" cellspacing="0">
  <tr>
    <td valign="top"><b>Attribute</b></td>
    <td valign="top"><b>Description</b></td>
    <td align="center" valign="top"><b>Required</b></td>
  </tr>
  <tr>
    <td valign="top">src</td>
    <td valign="top">File containing SQL statements</td>
    <td valign="top" align="center">Yes, unless statements enclosed within tags</td>
  </tr>
</table>
<p>The <code>&lt;transaction&gt;</code> element supports any <a
href="../CoreTypes/resources.html">resource</a> or single element
resource collection as nested element to specify the resource
containing the SQL statements.</p>

<h4>any <a href="../CoreTypes/resources.html">resource</a> or resource
collection</h4>

<p>You can specify multiple sources via nested resource collection
elements.  Each resource of the collection will be run in a
transaction of its own.  Prior to Ant 1.7 only filesets were
supported.  Use a sort resource collection to get a predictable order
of transactions. </p>

<h4>classpath</h4>
<p><code>Sql</code>'s <em>classpath</em> attribute is a <a
href="../using.html#path">PATH like structure</a> and can also be set via a nested
<em>classpath</em> element. It is used to load the JDBC classes.</p>

<h3>Examples</h3>
<blockquote><pre>&lt;sql
    driver=&quot;org.database.jdbcDriver&quot;
    url=&quot;jdbc:database-url&quot;
    userid=&quot;sa&quot;
    password=&quot;pass&quot;
    src=&quot;data.sql&quot;
/&gt;
</pre></blockquote>

<p>Connects to the database given in <i>url</i> as the sa user using the 
org.database.jdbcDriver and executes the SQL statements contained within 
the file data.sql</p>

<blockquote><pre>&lt;sql
    driver=&quot;org.database.jdbcDriver&quot;
    url=&quot;jdbc:database-url&quot;
    userid=&quot;sa&quot;
    password=&quot;pass&quot;
    &gt;
insert
into table some_table
values(1,2,3,4);

truncate table some_other_table;
&lt;/sql&gt;
</pre></blockquote>

<p>Connects to the database given in <i>url</i> as the sa
 user using the org.database.jdbcDriver and executes the two SQL statements 
 inserting data into some_table and truncating some_other_table. Ant Properties
 in the nested text will not be expanded.</p>

<p>Note that you may want to enclose your statements in
<code>&lt;![CDATA[</code> ... <code>]]&gt;</code> sections so you don't
need to escape <code>&lt;</code>, <code>&gt;</code> <code>&amp;</code>
or other special characters. For example:</p>

<blockquote><pre>&lt;sql
    driver=&quot;org.database.jdbcDriver&quot;
    url=&quot;jdbc:database-url&quot;
    userid=&quot;sa&quot;
    password=&quot;pass&quot;
    &gt;&lt;![CDATA[

update some_table set column1 = column1 + 1 where column2 &lt; 42;

]]&gt;&lt;/sql&gt;
</pre></blockquote>

The following command turns property expansion in nested text on (it is off purely for backwards
compatibility), then creates a new user in the HSQLDB database using Ant properties. 

<blockquote><pre>&lt;sql
    driver="org.hsqldb.jdbcDriver";
    url="jdbc:hsqldb:file:${database.dir}"
    userid="sa"
    password=""
    expandProperties="true"
    &gt;
  &lt;transaction&gt;
    CREATE USER ${newuser} PASSWORD ${newpassword}
  &lt;/transaction&gt;
&lt;/sql&gt;
</pre></blockquote>


<p>The following connects to the database given in url as the sa user using 
the org.database.jdbcDriver and executes the SQL statements contained within 
the files data1.sql, data2.sql and data3.sql and then executes the truncate 
operation on <i>some_other_table</i>.</p>

<blockquote><pre>&lt;sql
    driver=&quot;org.database.jdbcDriver&quot;
    url=&quot;jdbc:database-url&quot;
    userid=&quot;sa&quot;
    password=&quot;pass&quot; &gt;
  &lt;transaction  src=&quot;data1.sql&quot;/&gt;
  &lt;transaction  src=&quot;data2.sql&quot;/&gt;
  &lt;transaction  src=&quot;data3.sql&quot;/&gt;
  &lt;transaction&gt;
    truncate table some_other_table;
  &lt;/transaction&gt;
&lt;/sql&gt;
</pre></blockquote>

<p>The following example does the same as (and may execute additional
SQL files if there are more files matching the pattern
<code>data*.sql</code>) but doesn't guarantee that data1.sql will be
run before <code>data2.sql</code>.</p>

<blockquote><pre>&lt;sql
    driver=&quot;org.database.jdbcDriver&quot;
    url=&quot;jdbc:database-url&quot;
    userid=&quot;sa&quot;
    password=&quot;pass&quot;&gt;
  &lt;path&gt;
    &lt;fileset dir=&quot;.&quot;&gt;
      &lt;include name=&quot;data*.sql&quot;/&gt;
    &lt;/fileset&gt;
  &lt;path&gt;
  &lt;transaction&gt;
    truncate table some_other_table;
  &lt;/transaction&gt;
&lt;/sql&gt;
</pre></blockquote>

<p>The following connects to the database given in url as the sa user using the 
org.database.jdbcDriver and executes the SQL statements contained within the 
file data.sql, with output piped to outputfile.txt, searching /some/jdbc.jar 
as well as the system classpath for the driver class.</p>

<blockquote><pre>&lt;sql
    driver=&quot;org.database.jdbcDriver&quot;
    url=&quot;jdbc:database-url&quot;
    userid=&quot;sa&quot;
    password=&quot;pass&quot;
    src=&quot;data.sql&quot;
    print=&quot;yes&quot;
    output=&quot;outputfile.txt&quot;
    &gt;
&lt;classpath&gt;
	&lt;pathelement location=&quot;/some/jdbc.jar&quot;/&gt;
&lt;/classpath&gt;
&lt;/sql&gt;
</pre></blockquote>

<p>The following will only execute if the RDBMS is &quot;oracle&quot; and the version 
starts with &quot;8.1.&quot;</p>

<blockquote><pre>&lt;sql
    driver=&quot;org.database.jdbcDriver&quot;
    url=&quot;jdbc:database-url&quot;
    userid=&quot;sa&quot;
    password=&quot;pass&quot;
    src=&quot;data.sql&quot;
    rdbms=&quot;oracle&quot;
    version=&quot;8.1.&quot;
    &gt;
insert
into table some_table
values(1,2,3,4);

truncate table some_other_table;
&lt;/sql&gt;
</pre></blockquote>


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