# Statements

A SQL statement is a set of instruction that consists of identifiers, parameters, variables, names, data types, and SQL reserved words that compiles successfully.

### Data Definition Language (DDL) Statements <a href="#data-definition-language" id="data-definition-language"></a>

* defines data structures.

<table><thead><tr><th>Statements</th><th data-hidden></th><th data-hidden></th></tr></thead><tbody><tr><td>ALTER</td><td></td><td></td></tr><tr><td>Collations</td><td></td><td></td></tr><tr><td>CREATE</td><td></td><td></td></tr><tr><td>DROP</td><td></td><td></td></tr><tr><td>DISABLE TRIGGER</td><td></td><td></td></tr><tr><td>ENABLE TRIGGER</td><td></td><td></td></tr><tr><td>RENAME</td><td></td><td></td></tr><tr><td>UPDATE STATISTICS</td><td></td><td></td></tr><tr><td>TRUNCATE TABLE</td><td></td><td></td></tr></tbody></table>

### Data Manipulation Language (DML) Statements <a href="#data-manipulation-language" id="data-manipulation-language"></a>

* affect the information stored in the database.

<table><thead><tr><th>Statements</th><th data-hidden></th><th data-hidden></th></tr></thead><tbody><tr><td>BULK INSERT</td><td></td><td></td></tr><tr><td>DELETE</td><td></td><td></td></tr><tr><td>INSERT</td><td></td><td></td></tr><tr><td>SELECT</td><td></td><td></td></tr><tr><td>UPDATE</td><td></td><td></td></tr><tr><td>MERGE</td><td></td><td></td></tr></tbody></table>

### SET Statements

* determine how the current session handles run time settings.

<table><thead><tr><th>Statement</th><th>Description</th></tr></thead><tbody><tr><td><pre class="language-sql"><code class="lang-sql">SET STATISTICS TIME { ON | OFF }
</code></pre></td><td>Displays the number of milliseconds required to parse, compile, and execute each statement.</td></tr></tbody></table>