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<h1>SQL Drop Index, Table and Database</h1>
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<h2>Drop Index</h2>
<p>You can delete an existing index in a table with the DROP INDEX statement.</p>
<p>Syntax for Microsoft SQLJet (and Microsoft Access):</p>
<table class="ex" cellspacing="0" border="1" width="100%">
<tr><td><pre>DROP INDEX index_name ON table_name</pre>
</td></tr></table>
<p>Syntax for MS SQL Server:</p>
<table class="ex" cellspacing="0" border="1" width="100%" id="table1">
<tr><td><pre>DROP INDEX table_name.index_name</pre>
</td></tr></table>
<p>Syntax for IBM DB2 and Oracle:</p>
<table class="ex" cellspacing="0" border="1" width="100%" id="table2">
<tr><td><pre>DROP INDEX index_name</pre>
</td></tr></table>
<p>Syntax for MySQL:</p>
<table class="ex" cellspacing="0" border="1" width="100%" id="table3">
<tr><td><pre>ALTER TABLE table_name DROP INDEX index_name</pre>
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<h2>Delete a Table or Database</h2>
<p>To delete a table (the table
structure, attributes, and indexes will also be deleted):</p>
<table class="ex" cellspacing="0" border="1" width="100%">
<tr><td><pre>DROP TABLE table_name</pre>
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<p>To delete a database:</p>
<table class="ex" cellspacing="0" border="1" width="100%">
<tr><td><pre>DROP DATABASE database_name</pre>
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<h2>Truncate a Table</h2>
<p>What if we only want to get rid of the data inside a table, and not the table
itself? Use the TRUNCATE TABLE command (deletes only the data inside the table):</p>
<table class="ex" cellspacing="0" border="1" width="100%">
<tr><td><pre>TRUNCATE TABLE table_name</pre>
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