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<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 and commit transaction;
and <b>abort</b> execution and transaction and fail task.</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">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>
</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>
<h4>fileset</h4>
<p>You can specify multiple source files via nested <a
href="../CoreTypes/fileset.html">fileset</a> elements.  Each file of
the fileset will be run in a transaction of its own, the order by
which the files of a single fileset will be executed is not
defined.</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>
<p>
The 
</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 </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>

<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;fileset dir=&quot;.&quot;&gt;
    &lt;include name=&quot;data*.sql&quot; /&gt;
  &lt;/fileset&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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<p align="center">Copyright &copy; 2000-2002 Apache Software Foundation. All rights
Reserved.</p>
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