21.5.27 ndb_show_tables — Display List of NDB Tables
ndb_show_tables displays a list of all NDB database objects in the cluster. By default, this includes not only both user-created tables and NDB system tables, but NDB-specific indexes, internal triggers, and NDB Cluster Disk Data objects as well.
Options that can be used with ndb_show_tables are shown in the following table. Additional descriptions follow the table.
Table 21.43 Command-line options used with the program ndb_show_tables
| Format | Description | Added, Deprecated, or Removed |
|---|---|---|
| Directory containing character sets | (Supported in all NDB releases based on MySQL 5.7) | |
| Number of times to retry connection before giving up | (Supported in all NDB releases based on MySQL 5.7) | |
| Number of seconds to wait between attempts to contact management server | (Supported in all NDB releases based on MySQL 5.7) | |
| Same as --ndb-connectstring | (Supported in all NDB releases based on MySQL 5.7) | |
| Write core file on error; used in debugging | (Supported in all NDB releases based on MySQL 5.7) | |
| Specifies database in which table is found; database name must be followed by table name | (Supported in all NDB releases based on MySQL 5.7) | |
| Read given file after global files are read | (Supported in all NDB releases based on MySQL 5.7) | |
| Read default options from given file only | (Supported in all NDB releases based on MySQL 5.7) | |
| Also read groups with concat(group, suffix) | (Supported in all NDB releases based on MySQL 5.7) | |
| Read given path from login file | (Supported in all NDB releases based on MySQL 5.7) | |
| Number of times to repeat output | (Supported in all NDB releases based on MySQL 5.7) | |
| Display help text and exit | (Supported in all NDB releases based on MySQL 5.7) | |
| 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 5.7) | |
| Same as --ndb-connectstring | (Supported in all NDB releases based on MySQL 5.7) | |
| Set node ID for this node, overriding any ID set by --ndb-connectstring | (Supported in all NDB releases based on MySQL 5.7) | |
| 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 5.7) | |
| Do not read default options from any option file other than login file | (Supported in all NDB releases based on MySQL 5.7) | |
| Return output suitable for MySQL LOAD DATA statement | (Supported in all NDB releases based on MySQL 5.7) | |
| Print program argument list and exit | (Supported in all NDB releases based on MySQL 5.7) | |
| Show table temporary flag | (Supported in all NDB releases based on MySQL 5.7) | |
| Limit output to objects of this type | (Supported in all NDB releases based on MySQL 5.7) | |
| Do not qualify table names | (Supported in all NDB releases based on MySQL 5.7) | |
| Display help text and exit; same as --help | (Supported in all NDB releases based on MySQL 5.7) | |
| Display version information and exit | (Supported in all NDB releases based on MySQL 5.7) |
Usage
ndb_show_tables [-c connection_string]
-
--character-sets-dirCommand-Line Format --character-sets-dir=pathDirectory containing character sets.
-
--connect-retriesCommand-Line Format --connect-retries=#Type Integer Default Value 12Minimum Value 0Maximum Value 12Number of times to retry connection before giving up.
-
--connect-retry-delayCommand-Line Format --connect-retry-delay=#Type Integer Default Value 5Minimum Value 0Maximum Value 5Number of seconds to wait between attempts to contact management server.
-
--connect-stringCommand-Line Format --connect-string=connection_stringType String Default Value [none]Same as
--ndb-connectstring. -
--core-fileCommand-Line Format --core-fileWrite core file on error; used in debugging.
-
--database,-dSpecifies the name of the database in which the desired table is found. If this option is given, the name of a table must follow the database name.
If this option has not been specified, and no tables are found in the
TEST_DBdatabase, ndb_show_tables issues a warning. -
--defaults-extra-fileCommand-Line Format --defaults-extra-file=pathType String Default Value [none]Read given file after global files are read.
-
--defaults-fileCommand-Line Format --defaults-file=pathType String Default Value [none]Read default options from given file only.
-
--defaults-group-suffixCommand-Line Format --defaults-group-suffix=stringType String Default Value [none]Also read groups with concat(group, suffix).
-
--helpCommand-Line Format --helpDisplay help text and exit.
-
--login-pathCommand-Line Format --login-path=pathType String Default Value [none]Read given path from login file.
-
--loops,-lSpecifies the number of times the utility should execute. This is 1 when this option is not specified, but if you do use the option, you must supply an integer argument for it.
-
--ndb-connectstringCommand-Line Format --ndb-connectstring=connection_stringType 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-hostCommand-Line Format --ndb-mgmd-host=connection_stringType String Default Value [none]Same as
--ndb-connectstring. -
--ndb-nodeidCommand-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. -
--no-defaultsCommand-Line Format --no-defaultsDo not read default options from any option file other than login file.
-
--parsable,-pUsing this option causes the output to be in a format suitable for use with
LOAD DATA. -
--print-defaultsCommand-Line Format --print-defaultsPrint program argument list and exit.
-
--show-temp-statusIf specified, this causes temporary tables to be displayed.
-
--type,-tCan be used to restrict the output to one type of object, specified by an integer type code as shown here:
1: System table2: User-created table3: Unique hash index
Any other value causes all
NDBdatabase objects to be listed (the default). -
--unqualified,-uIf specified, this causes unqualified object names to be displayed.
-
--usageCommand-Line Format --usageDisplay help text and exit; same as
--help. -
--versionCommand-Line Format --versionDisplay version information and exit.
Only user-created NDB Cluster tables may be accessed from MySQL; system tables such as SYSTAB_0 are not visible to mysqld. However, you can examine the contents of system tables using NDB API applications such as ndb_select_all (see Section 21.5.25, “ndb_select_all — Print Rows from an NDB Table”).
Prior to NDB 7.5.18 and 7.6.14, this program printed NDBT_ProgramExit -
upon completion of its run, due to an unnecessary dependency on the statusNDBT testing library. This dependency is has now been removed, eliminating the extraneous output.
© 2025 Oracle
Licensed under the GPLv2 License.