ndb_drop_table drops the specified NDB table. (If you try to use this on a table created with a storage engine other than NDB, the attempt fails with the error 723: No such table exists.) This operation is extremely fast; in some cases, it can be an order of magnitude faster than using a MySQL DROP TABLE statement on an NDB table.
ndb_drop_table -cconnection_stringtbl_name-ddb_name
Options that can be used with ndb_drop_table are shown in the following table. Additional descriptions follow the table.
Table 23.33 Command-line options used with the program ndb_drop_table
| Format | Description | Added, Deprecated, or Removed |
|---|---|---|
| Directory containing character sets | (Supported in all NDB releases based on MySQL 8.0) |
|
| Number of times to retry connection before giving up | (Supported in all NDB releases based on MySQL 8.0) |
|
| Number of seconds to wait between attempts to contact management server | (Supported in all NDB releases based on MySQL 8.0) |
|
| Same as --ndb-connectstring | (Supported in all NDB releases based on MySQL 8.0) |
|
| Write core file on error; used in debugging | (Supported in all NDB releases based on MySQL 8.0) |
|
| Name of database in which table is found | (Supported in all NDB releases based on MySQL 8.0) |
| Read given file after global files are read | (Supported in all NDB releases based on MySQL 8.0) |
|
| Read default options from given file only | (Supported in all NDB releases based on MySQL 8.0) |
|
| Also read groups with concat(group, suffix) | (Supported in all NDB releases based on MySQL 8.0) |
|
| Display help text and exit | (Supported in all NDB releases based on MySQL 8.0) |
|
| Read given path from login file | (Supported in all NDB releases based on MySQL 8.0) |
|
| 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) |
|
| Same as --ndb-connectstring | (Supported in all NDB releases based on MySQL 8.0) |
|
| Set node ID for this node, overriding any ID set by --ndb-connectstring | (Supported in all NDB releases based on MySQL 8.0) |
|
| 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) |
|
| Do not read default options from any option file other than login file | (Supported in all NDB releases based on MySQL 8.0) |
|
| Print program argument list and exit | (Supported in all NDB releases based on MySQL 8.0) |
|
| Display help text and exit; same as --help | (Supported in all NDB releases based on MySQL 8.0) |
|
| Display version information and exit | (Supported in all NDB releases based on MySQL 8.0) |
| 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.
| Command-Line Format | --database=dbname |
|---|---|
| Type | String |
| Default Value | TEST_DB |
Name of the database in which the table resides.
| 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).
| Command-Line Format | --help |
|---|
Display help text and exit.
| Command-Line Format | --login-path=path |
|---|---|
| Type | String |
| Default Value | [none] |
Read given path from login file.
| 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.
| 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 | --no-defaults |
|---|
Do not read default options from any option file other than login file.
| Command-Line Format | --print-defaults |
|---|
Print program argument list and exit.
| Command-Line Format | --usage |
|---|
Display help text and exit; same as --help.
| Command-Line Format | --version |
|---|
Display version information and exit.
Prior to NDB 8.0.17, an NDB table dropped using this utility persisted in the MySQL data dictionary but could not be dropped using DROP TABLE in the mysql client. In NDB 8.0.17 and later, such “orphan” tables can be dropped using DROP TABLE. (Bug #29125206, Bug #93672)