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ndb_desc

NAME

ndb_desc - describe NDB tables

SYNOPSIS

ndb_desc options

DESCRIPTION

ndb_desc

provides a detailed description of one or more NDB tables.

Usage:

 ndb_desc -c connect_string tbl_name -d db_name
 

Sample Output:

MySQL table creation and population statements:

 USE test;
 CREATE TABLE fish (
     id INT(11) NOT NULL AUTO_INCREMENT,
     name VARCHAR(20),
     PRIMARY KEY pk (id),
     UNIQUE KEY uk (name)
 ) ENGINE=NDBCLUSTER;
 INSERT INTO fish VALUES 
     ('','guppy'), ('','tuna'), ('','shark'), 
     ('','manta ray'), ('','grouper'), ('','puffer');
 

Output from ndb_desc:

 shell> ./ndb_desc -c localhost fish -d test -p
 -- fish --
 Version: 16777221
 Fragment type: 5
 K Value: 6
 Min load factor: 78
 Max load factor: 80
 Temporary table: no
 Number of attributes: 2
 Number of primary keys: 1
 Length of frm data: 268
 Row Checksum: 1
 Row GCI: 1
 TableStatus: Retrieved
 -- Attributes --
 id Int PRIMARY KEY DISTRIBUTION KEY AT=FIXED ST=MEMORY
 name Varchar(20;latin1_swedish_ci) NULL AT=SHORT_VAR ST=MEMORY
 -- Indexes --
 PRIMARY KEY(id) - UniqueHashIndex
 uk(name) - OrderedIndex
 PRIMARY(id) - OrderedIndex
 uk$unique(name) - UniqueHashIndex
 -- Per partition info --
 Partition  Row count  Commit count  Frag fixed memory  Frag varsized memory
 2          2          2             65536              327680
 1          2          2             65536              327680
 3          2          2             65536              327680
 NDBT_ProgramExit: 0 - OK
 

Additional Options:

•

--extra-partition-info, -p

Prints additional information about the table's partitions.

•

Information about multiple tables can be obtained in a single invocation of ndb_desc by using their names, separated by spaces. All of the tables must be in the same database.

COPYRIGHT

Copyright 1997-2007 MySQL AB

This documentation is NOT distributed under a GPL license. Use of this documentation is subject to the following terms: You may create a printed copy of this documentation solely for your own personal use. Conversion to other formats is allowed as long as the actual content is not altered or edited in any way. You shall not publish or distribute this documentation in any form or on any media, except if you distribute the documentation in a manner similar to how MySQL disseminates it (that is, electronically for download on a Web site with the software) or on a CD-ROM or similar medium, provided however that the documentation is disseminated together with the software on the same medium. Any other use, such as any dissemination of printed copies or use of this documentation, in whole or in part, in another publication, requires the prior written consent from an authorized representative of MySQL AB. MySQL AB reserves any and all rights to this documentation not expressly granted above.

Please email <docs@mysql.com> for more information.

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/). This software comes with no warranty.