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NDB_SELECT_ALL

NAME
SYNOPSIS
DESCRIPTION
COPYRIGHT
SEE ALSO
AUTHOR

NAME

ndb_select_all − print rows from an NDB table

SYNOPSIS

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

DESCRIPTION

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 23.44. Command−line options used with the program ndb_select_all

−−character−sets−dir

Directory containing character sets.

−−connect−retries

Number of times to retry connection before giving up.

−−connect−retry−delay

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

−−connect−string

Same as −−ndb−connectstring.

−−core−file

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.

−−defaults−extra−file

Read given file after global files are read.

−−defaults−file

Read default options from given file only.

−−defaults−group−suffix

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 23.6.3.2, “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.

−−help

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.

−−login−path

Read given path from login file.

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

−−nodata Causes any table data to be omitted.

−−ndb−connectstring

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

−−ndb−mgmd−host

Same as −−ndb−connectstring.

−−ndb−nodeid

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

−−ndb−optimized−node−selection

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

−−no−defaults

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.

Note
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−defaults

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.

−−usage

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.

−−version

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:

CREATE TABLE dogs (
id INT(11) NOT NULL AUTO_INCREMENT,
name VARCHAR(25) NOT NULL,
breed VARCHAR(50) NOT NULL,
PRIMARY KEY pk (id),
KEY ix (name)
)
TABLESPACE ts STORAGE DISK
ENGINE=NDBCLUSTER;
INSERT INTO dogs VALUES
('', '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

COPYRIGHT

Copyright © 1997, 2021, Oracle and/or its affiliates.

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.

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

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