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ndb_select_all − print rows from an NDB table


ndb_select_all −c connection_string tbl_name −d db_name [> file_name]


ndb_select_all prints all rows from an NDB table to stdout. Usage

ndb_select_all −c connection_string tbl_name −d db_name [> file_name]

Options that can be used with ndb_select_all are shown in the following table. Additional descriptions follow the table.

Table 23.46. Command−line options used with the program ndb_select_all

Directory containing character sets.

Number of times to retry connection before giving up.

Number of seconds to wait between attempts to contact management server.

Same as −−ndb−connectstring.

Write core file on error; used in debugging.

−−database=dbname, −d dbname Name of the database in which the table is found. The default value is TEST_DB.

−−descending, −z Sorts the output in descending order. This option can be used only in conjunction with the −o (−−order) option.

Read given file after global files are read.

Read default options from given file only.

Also read groups with concat(group, suffix).

−−delimiter=character, −D character Causes the character to be used as a column delimiter. Only table data columns are separated by this delimiter.

The default delimiter is the tab character.

−−disk Adds a disk reference column to the output. The column is nonempty only for Disk Data tables having nonindexed columns.

−−gci Adds a GCI column to the output showing the global checkpoint at which each row was last updated. See Section 23.2, “NDB Cluster Overview”, and Section, “NDB Cluster Log Events”, for more information about checkpoints.

−−gci64 Adds a ROW$GCI64 column to the output showing the global checkpoint at which each row was last updated, as well as the number of the epoch in which this update occurred.

Display help text and exit.

−−lock=lock_type, −l lock_type Employs a lock when reading the table. Possible values for lock_type are:

• 0: Read lock

• 1: Read lock with hold

• 2: Exclusive read lock

There is no default value for this option.

Read given path from login file.

−−header=FALSE Excludes column headers from the output.

−−nodata Causes any table data to be omitted.

Set connect string for connecting to ndb_mgmd. Syntax: "[nodeid=id;][host=]hostname[:port]". Overrides entries in NDB_CONNECTSTRING and my.cnf.

Same as −−ndb−connectstring.

Set node ID for this node, overriding any ID set by −−ndb−connectstring.

Enable optimizations for selection of nodes for transactions. Enabled by default; use −−skip−ndb−optimized−node−selection to disable.

Do not read default options from any option file other than login file.

−−order=index_name, −o index_name Orders the output according to the index named index_name.

This is the name of an index, not of a column; the index must have been explicitly named when created.

parallelism=#, −p # Specifies the degree of parallelism.

Print program argument list and exit.

−−rowid Adds a ROWID column providing information about the fragments in which rows are stored.

−−tupscan, −t Scan the table in the order of the tuples.

Display help text and exit; same as −−help.

−−useHexFormat −x Causes all numeric values to be displayed in hexadecimal format. This does not affect the output of numerals contained in strings or datetime values.

Display version information and exit.

Sample Output

Output from a MySQL SELECT statement:

mysql> SELECT * FROM ctest1.fish;
| id | name |
| 3 | shark |
| 6 | puffer |
| 2 | tuna |
| 4 | manta ray |
| 5 | grouper |
| 1 | guppy |
6 rows in set (0.04 sec)

Output from the equivalent invocation of ndb_select_all:

$> ./ndb_select_all −c localhost fish −d ctest1
id name
3 [shark]
6 [puffer]
2 [tuna]
4 [manta ray]
5 [grouper]
1 [guppy]
6 rows returned
NDBT_ProgramExit: 0 − OK

All string values are enclosed by square brackets ([...]) in the output of ndb_select_all. For another example, consider the table created and populated as shown here:

PRIMARY KEY pk (id),
KEY ix (name)
('', 'Lassie', 'collie'),
('', 'Scooby−Doo', 'Great Dane'),
('', 'Rin−Tin−Tin', 'Alsatian'),
('', 'Rosscoe', 'Mutt');

This demonstrates the use of several additional ndb_select_all options:

$> ./ndb_select_all −d ctest1 dogs −o ix −z −−gci −−disk
GCI id name breed DISK_REF
834461 2 [Scooby−Doo] [Great Dane] [ m_file_no: 0 m_page: 98 m_page_idx: 0 ]
834878 4 [Rosscoe] [Mutt] [ m_file_no: 0 m_page: 98 m_page_idx: 16 ]
834463 3 [Rin−Tin−Tin] [Alsatian] [ m_file_no: 0 m_page: 34 m_page_idx: 0 ]
835657 1 [Lassie] [Collie] [ m_file_no: 0 m_page: 66 m_page_idx: 0 ]
4 rows returned
NDBT_ProgramExit: 0 − OK


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

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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/.


Oracle Corporation (http://dev.mysql.com/).