MySQL 9.2 Release Notes
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.
-
Command-Line Format --character-sets-dir=pathDirectory containing character sets.
-
Command-Line Format --connect-retries=#Type Integer Default Value 12Minimum Value 0Maximum Value 12Number of times to retry connection before giving up.
-
Command-Line Format --connect-retry-delay=#Type Integer Default Value 5Minimum Value 0Maximum Value 5Number of seconds to wait between attempts to contact management server.
-
Command-Line Format --connect-string=connection_stringType String Default Value [none]Same as
--ndb-connectstring. -
Command-Line Format --core-fileWrite core file on error; used in debugging.
--database=,dbname-ddbnameName of the database in which the table is found. The default value is
TEST_DB.--descending,-zSorts the output in descending order. This option can be used only in conjunction with the
-o(--order) option.-
Command-Line Format --defaults-extra-file=pathType String Default Value [none]Read given file after global files are read.
-
Command-Line Format --defaults-file=pathType String Default Value [none]Read default options from given file only.
-
Command-Line Format --defaults-group-suffix=stringType String Default Value [none]Also read groups with concat(group, suffix).
--delimiter=,character-DcharacterCauses the
characterto 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
GCIcolumn 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$GCI64column 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 --helpDisplay help text and exit.
--lock=,lock_type-llock_typeEmploys a lock when reading the table. Possible values for
lock_typeare:0: Read lock1: Read lock with hold2: Exclusive read lock
There is no default value for this option.
-
Command-Line Format --login-path=pathType String Default Value [none]Read given path from login file.
-
Command-Line Format --no-login-pathsSkips 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_stringType String Default Value [none]Set connection string for connecting to ndb_mgmd. Syntax:
[nodeid=. Overrides entries inid;][host=]hostname[:port]NDB_CONNECTSTRINGandmy.cnf. -
Command-Line Format --ndb-mgm-tls=levelType Enumeration Default Value relaxedValid Values relaxedstrictSets the level of TLS support required to connect to the management server; one of
relaxedorstrict.relaxed(the default) means that a TLS connection is attempted, but success is not required;strictmeans that TLS is required to connect. -
Command-Line Format --ndb-mgmd-host=connection_stringType 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-selectionCommand-Line Format --ndb-optimized-node-selectionEnable optimizations for selection of nodes for transactions. Enabled by default; use
--skip-ndb-optimized-node-selectionto disable.-
Command-Line Format --ndb-tls-search-path=listType Path name Default Value (Unix) $HOME/ndb-tlsDefault Value (Windows) $HOMEDIR/ndb-tlsSpecify a list of directories to search for a CA file. On Unix platforms, the directory names are separated by colons (
:); on Windows systems, the semicolon character (;) is used as the separator. A directory reference may be relative or absolute; it may contain one or more environment variables, each denoted by a prefixed dollar sign ($), 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-defaultsDo not read default options from any option file other than login file.
--order=,index_name-oindex_nameOrders the output according to the index named
index_name.NoteThis 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-defaultsPrint program argument list and exit.
Adds a
ROWIDcolumn providing information about the fragments in which rows are stored.--tupscan,-tScan the table in the order of the tuples.
-
Command-Line Format --usageDisplay 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 --versionDisplay 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
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