---
name: "ndb_drop_index"
section: "1"
platform: "linux"
package: "mysql-server-5.0"
version: "5.0.51a-24+lenny5"
release: "Debian 5.0 (Lenny)"
platforms: ["linux"]
url: "https://new.carta.tech/ndb_drop_index"
---

# ndb\_drop\_index(1)

drop index from NDB table

## NAME

ndb\_drop\_index - drop index from NDB table

## SYNOPSIS

**ndb\_drop\_index** *options*

## DESCRIPTION

**ndb\_drop\_index** drops the specified index from an NDB table. *It is recommended that you use this utility only as an example for writing NDB API applications* — see the Warning later in this section for details.

**Usage**:

```
ndb_drop_index -c connect_string table_name index -d db_name
```

The statement shown above drops the index named *index* from the *table* in the *database*.

**Additional Options**: None that are specific to this application.

**Warning**

*Operations performed on Cluster table indexes using the NDB API are not visible to MySQL and make the table unusable by a MySQL server*. If you use this program to drop an index, then try to access the table from an SQL node, an error results, as shown here:

```
shell> ./ndb_drop_index -c localhost dogs ix -d ctest1
Dropping index dogs/idx...OK
NDBT_ProgramExit: 0 - OK
shell> ./mysql -u jon -p ctest1
Enter password: *******
Reading table information for completion of table and column names
You can turn off this feature to get a quicker startup with -A
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 7 to server version: 5.1.12-beta-20060817
Type 'help;' or '\h' for help. Type '\c' to clear the buffer.
mysql> SHOW TABLES;
+------------------+
| Tables_in_ctest1 |
+------------------+
| a                |
| bt1              |
| bt2              |
| dogs             |
| employees        |
| fish             |
+------------------+
6 rows in set (0.00 sec)
mysql> SELECT * FROM dogs;
ERROR 1296 (HY000): Got error 4243 'Index not found' from NDBCLUSTER
```

In such a case, your *only* option for making the table available to MySQL again is to drop the table and re-create it. You can use either the SQL statementDROP TABLE or the **ndb\_drop\_table** utility (see [**ndb\_drop\_table**(1)](/ndb_drop_table/1.md)) to drop the table.

## COPYRIGHT

Copyright 2007-2008 MySQL AB

This documentation is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; version 2 of the License.

This documentation is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with the program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or see http://www.gnu.org/licenses/.

## SEE ALSO

For more information, please refer to the MySQL Reference Manual, which may already be installed locally and which is also available online at http://dev.mysql.com/doc/.

## AUTHOR

MySQL AB (http://www.mysql.com/).