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MySQL 8.0 Reference Manual  /  ...  /  ndb_select_all — Print Rows from an NDB Table

23.5.24 ndb_select_all — Print Rows from an NDB Table

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

Format Description Added, Deprecated, or Removed

--character-sets-dir=path

Directory containing character sets

(Supported in all NDB releases based on MySQL 8.0)

--connect-retries=#

Number of times to retry connection before giving up

(Supported in all NDB releases based on MySQL 8.0)

--connect-retry-delay=#

Number of seconds to wait between attempts to contact management server

(Supported in all NDB releases based on MySQL 8.0)

--connect-string=connection-string,

-c

Same as --ndb-connectstring

(Supported in all NDB releases based on MySQL 8.0)

--core-file

Write core file on error; used in debugging

(Supported in all NDB releases based on MySQL 8.0)

--database=dbname,

-d

Name of database in which table is found

(Supported in all NDB releases based on MySQL 8.0)

--defaults-extra-file=path

Read given file after global files are read

(Supported in all NDB releases based on MySQL 8.0)

--defaults-file=path

Read default options from given file only

(Supported in all NDB releases based on MySQL 8.0)

--defaults-group-suffix=string

Also read groups with concat(group, suffix)

(Supported in all NDB releases based on MySQL 8.0)

--delimiter=char,

-D

Set column delimiter

(Supported in all NDB releases based on MySQL 8.0)

--descending,

-z

Sort resultset in descending order (requires --order)

(Supported in all NDB releases based on MySQL 8.0)

--disk

Print disk references (useful only for Disk Data tables having nonindexed columns)

(Supported in all NDB releases based on MySQL 8.0)

--gci

Include GCI in output

(Supported in all NDB releases based on MySQL 8.0)

--gci64

Include GCI and row epoch in output

(Supported in all NDB releases based on MySQL 8.0)

--header,

-h

Print header (set to 0|FALSE to disable headers in output)

(Supported in all NDB releases based on MySQL 8.0)

--lock=#,

-l

Lock type

(Supported in all NDB releases based on MySQL 8.0)

--login-path=path

Read given path from login file

(Supported in all NDB releases based on MySQL 8.0)

--help,

-?

Display help text and exit

(Supported in all NDB releases based on MySQL 8.0)

--ndb-connectstring=connection-string,

-c

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

(Supported in all NDB releases based on MySQL 8.0)

--ndb-mgmd-host=connection-string,

-c

Same as --ndb-connectstring

(Supported in all NDB releases based on MySQL 8.0)

--ndb-nodeid=#

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

(Supported in all NDB releases based on MySQL 8.0)

--ndb-optimized-node-selection

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

(Supported in all NDB releases based on MySQL 8.0)

--no-defaults

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

(Supported in all NDB releases based on MySQL 8.0)

--nodata

Do not print table column data

(Supported in all NDB releases based on MySQL 8.0)

--order=index,

-o

Sort resultset according to index having this name

(Supported in all NDB releases based on MySQL 8.0)

--parallelism=#,

-p

Degree of parallelism

(Supported in all NDB releases based on MySQL 8.0)

--print-defaults

Print program argument list and exit

(Supported in all NDB releases based on MySQL 8.0)

--rowid

Print row ID

(Supported in all NDB releases based on MySQL 8.0)

--tupscan,

-t

Scan in tup order

(Supported in all NDB releases based on MySQL 8.0)

--usage,

-?

Display help text and exit; same as --help

(Supported in all NDB releases based on MySQL 8.0)

--useHexFormat,

-x

Output numbers in hexadecimal format

(Supported in all NDB releases based on MySQL 8.0)

--version,

-V

Display version information and exit

(Supported in all NDB releases based on MySQL 8.0)


  • --character-sets-dir

    Command-Line Format --character-sets-dir=path

    Directory containing character sets.

  • --connect-retries

    Command-Line Format --connect-retries=#
    Type Integer
    Default Value 12
    Minimum Value 0
    Maximum Value 12

    Number of times to retry connection before giving up.

  • --connect-retry-delay

    Command-Line Format --connect-retry-delay=#
    Type Integer
    Default Value 5
    Minimum Value 0
    Maximum Value 5

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

  • --connect-string

    Command-Line Format --connect-string=connection-string
    Type String
    Default Value [none]

    Same as --ndb-connectstring.

  • --core-file

    Command-Line Format --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

    Command-Line Format --defaults-extra-file=path
    Type String
    Default Value [none]

    Read given file after global files are read.

  • --defaults-file

    Command-Line Format --defaults-file=path
    Type String
    Default Value [none]

    Read default options from given file only.

  • --defaults-group-suffix

    Command-Line Format --defaults-group-suffix=string
    Type String
    Default Value [none]

    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

    Command-Line Format --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

    Command-Line Format --login-path=path
    Type String
    Default Value [none]

    Read given path from login file.

  • --header=FALSE

    Excludes column headers from the output.

  • --nodata

    Causes any table data to be omitted.

  • --ndb-connectstring

    Command-Line Format --ndb-connectstring=connection-string
    Type String
    Default Value [none]

    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

    Command-Line Format --ndb-mgmd-host=connection-string
    Type String
    Default Value [none]

    Same as --ndb-connectstring.

  • --ndb-nodeid

    Command-Line Format --ndb-nodeid=#
    Type Integer
    Default Value [none]

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

  • --ndb-optimized-node-selection

    Command-Line Format --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

    Command-Line Format --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

    Command-Line Format --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

    Command-Line Format --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

    Command-Line Format --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:

shell> ./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:

shell> ./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