Chapter 23 MySQL NDB Cluster 8.0

23.4.8 ndb_delete_all — Delete All Rows from an NDB Table

ndb_delete_all deletes all rows from the given NDB table. In some cases, this can be much faster than DELETE or even TRUNCATE TABLE.

Usage

ndb_delete_all -c connection_string tbl_name -d db_name

This deletes all rows from the table named tbl_name in the database named db_name. It is exactly equivalent to executing TRUNCATE db_name.tbl_name in MySQL.

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

Table 23.30 Command-line options used with the program ndb_delete_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 the database in which the 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)
`--diskscan`	Run disk scan	(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)
`--login-path=path`	Read given path from login file	(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)
`--print-defaults`	Print program argument list and exit	(Supported in all NDB releases based on MySQL 8.0)
`--transactional`, `-t`	Perform the delete in a single transaction (may run out of operations)	(Supported in all NDB releases based on MySQL 8.0)
`--tupscan`	Run tup scan	(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)
`--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, -d

Command-Line Format --database=dbname

Type String

Default Value TEST_DB

Name of the database containing the table to delete from.
--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).
--diskscan

Command-Line Format --diskscan

Type Boolean

Default Value FALSE

Run a disk scan.
--help

Command-Line Format --help

Display help text and exit.
--login-path

Command-Line Format --login-path=path

Type String

Default Value [none]

Read given path from login file.
--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.
--print-defaults

Command-Line Format --print-defaults

Print program argument list and exit.
--transactional, -t

Use of this option causes the delete operation to be performed as a single transaction.

~~Warning~~警告

With very large tables, using this option may cause the number of operations available to the cluster to be exceeded.
--tupscan

Run a tuple scan.
--usage

Command-Line Format --usage

Display help text and exit; same as --help.
--version

Command-Line Format --version

Display version information and exit.

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

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

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

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

Command-Line Format	`--core-file`

Command-Line Format	`--database=dbname`
Type	String
Default Value	`TEST_DB`

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

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

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

Command-Line Format	`--diskscan`
Type	Boolean
Default Value	`FALSE`

Command-Line Format	`--help`

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

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

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

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

Command-Line Format	`--ndb-optimized-node-selection`

Command-Line Format	`--no-defaults`

Command-Line Format	`--print-defaults`

Command-Line Format	`--usage`

Command-Line Format	`--version`

Prior to NDB 8.0.18, this program printed NDBT_ProgramExit - status upon completion of its run, due to an unnecessary dependency on the NDBT testing library. This dependency has been removed, eliminating the extraneous output.