21.5.9 ndb_delete_all — Delete All Rows from an NDB Table (original) (raw)

21.5.9 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 thanDELETE or evenTRUNCATE TABLE.

Usage

ndb_delete_all -c connection_string tbl_name -d db_name

This deletes all rows from the table named_tblname_ in the database named_dbname. It is exactly equivalent to executing `` TRUNCATEdbname.tblname_ `` in MySQL.

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

Table 21.28 Command-line options used with the program ndb_delete_all

• --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=name
  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
  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
  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.