MySQL 9.3 Reference Manual Including MySQL NDB Cluster 9.3
ndb_select_all prints all rows from an
NDB
table to
stdout
.
ndb_select_all -cconnection_string
tbl_name
-ddb_name
[>file_name
]
Options that can be used with ndb_select_all are shown in the following table. Additional descriptions follow the table.
Command-Line Format | --character-sets-dir=path |
---|
Directory containing character sets.
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.
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.
Command-Line Format | --connect-string=connection_string |
---|---|
Type | String |
Default Value | [none] |
Same as
--ndb-connectstring
.
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.
Command-Line Format | --defaults-extra-file=path |
---|---|
Type | String |
Default Value | [none] |
Read given file after global files are read.
Command-Line Format | --defaults-file=path |
---|---|
Type | String |
Default Value | [none] |
Read default options from given file only.
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.
Adds a disk reference column to the output. The column is nonempty only for Disk Data tables having nonindexed columns.
Adds a GCI
column to the output showing
the global checkpoint at which each row was last updated.
See Section 25.2, “NDB Cluster Overview”, and
Section 25.6.3.2, “NDB Cluster Log Events”, for more
information about checkpoints.
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.
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.
Command-Line Format | --login-path=path |
---|---|
Type | String |
Default Value | [none] |
Read given path from login file.
Command-Line Format | --no-login-paths |
---|
Skips reading options from the login path file.
Excludes column headers from the output.
Causes any table data to be omitted.
Command-Line Format | --ndb-connectstring=connection_string |
---|---|
Type | String |
Default Value | [none] |
Set connection string for connecting to
ndb_mgmd. Syntax:
[nodeid=
.
Overrides entries in id
;][host=]hostname
[:port
]NDB_CONNECTSTRING
and my.cnf
.
Command-Line Format | --ndb-mgm-tls=level |
---|---|
Type | Enumeration |
Default Value | relaxed |
Valid Values |
|
Sets the level of TLS support required to connect to the
management server; one of relaxed
or
strict
. relaxed
(the
default) means that a TLS connection is attempted, but
success is not required; strict
means
that TLS is required to connect.
Command-Line Format | --ndb-mgmd-host=connection_string |
---|---|
Type | String |
Default Value | [none] |
Same as
--ndb-connectstring
.
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.
Command-Line Format | --ndb-tls-search-path=list |
---|---|
Type | Path name |
Default Value (Unix) | $HOME/ndb-tls |
Default Value (Windows) | $HOMEDIR/ndb-tls |
Specify a list of directories to search for a CA file. On
Unix platforms, the directory names are separated by colons
(:
); on Windows systems, the semicolon
character (;
) is used as the separator. A
directory reference may be relative or absolute; it may
contain one or more environment variables, each denoted by a
prefixed dollar sign ($
), and expanded
prior to use.
Searching begins with the leftmost named directory and
proceeds from left to right until a file is found. An empty
string denotes an empty search path, which causes all
searches to fail. A string consisting of a single dot
(.
) indicates that the search path
limited to the current working directory.
If no search path is supplied, the compiled-in default value
is used. This value depends on the platform used: On
Windows, this is \ndb-tls
; on other
platforms (including Linux), it is
$HOME/ndb-tls
. This can be overridden by
compiling NDB Cluster using
-DWITH_NDB_TLS_SEARCH_PATH
.
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
.
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.
Command-Line Format | --print-defaults |
---|
Print program argument list and exit.
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.
Command-Line Format | --usage |
---|
Display help text and exit; same as
--help
.
Causes all numeric values to be displayed in hexadecimal format. This does not affect the output of numerals contained in strings or datetime values.
Command-Line Format | --version |
---|
Display version information and exit.
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
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