---
layout: global
title: TRUNCATE TABLE
displayTitle: TRUNCATE TABLE
license: |
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  this work for additional information regarding copyright ownership.
  The ASF licenses this file to You under the Apache License, Version 2.0
  (the "License"); you may not use this file except in compliance with
  the License.  You may obtain a copy of the License at
 
     http://www.apache.org/licenses/LICENSE-2.0
 
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---

### Description

The `TRUNCATE TABLE` statement removes all the rows from a table or partition(s). The table must not be a view 
or an external/temporary table. In order to truncate multiple partitions at once, the user can specify the partitions 
in `partition_spec`. If no `partition_spec` is specified it will remove all partitions in the table.

### Syntax

```sql
TRUNCATE TABLE table_identifier [ partition_spec ]
```

### Parameters

* **table_identifier**

    Specifies a table name, which may be optionally qualified with a database name.

    **Syntax:** `[ database_name. ] table_name`

* **partition_spec**

    An optional parameter that specifies a comma separated list of key and value pairs
    for partitions.

    **Syntax:** `PARTITION ( partition_col_name  = partition_col_val [ , ... ] )`

### Examples

```sql
-- Create table Student with partition
CREATE TABLE Student (name STRING, rollno INT) PARTITIONED BY (age INT);

SELECT * FROM Student;
+----+------+---+
|name|rollno|age|
+----+------+---+
| ABC|     1| 10|
| DEF|     2| 10|
| XYZ|     3| 12|
+----+------+---+

-- Removes all rows from the table in the partition specified
TRUNCATE TABLE Student partition(age=10);

-- After truncate execution, records belonging to partition age=10 are removed
SELECT * FROM Student;
+----+------+---+
|name|rollno|age|
+----+------+---+
| XYZ|     3| 12|
+----+------+---+

-- Removes all rows from the table from all partitions
TRUNCATE TABLE Student;

SELECT * FROM Student;
+----+------+---+
|name|rollno|age|
+----+------+---+
+----+------+---+
```

### Related Statements

* [DROP TABLE](sql-ref-syntax-ddl-drop-table.html)
* [ALTER TABLE](sql-ref-syntax-ddl-alter-table.html)