21.4.28 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.

The following table includes options that are specific to the NDB Cluster native backup restoration program ndb_show_tables. Additional descriptions follow the table. For options common to most NDB Cluster programs (including ndb_show_tables), see Section 21.4.32, “Options Common to NDB Cluster Programs — Options Common to NDB Cluster Programs”.

Table 21.261 Command-line options for the ndb_show_tables program

Format Description Added, Deprecated, or Removed



Specifies database in which table is found; database name must be followed by table name

(Supported in all MySQL 5.7 based releases)



Number of times to repeat output

(Supported in all MySQL 5.7 based releases)



Return output suitable for MySQL LOAD DATA statement

(Supported in all MySQL 5.7 based releases)


Show table temporary flag

(Supported in all MySQL 5.7 based releases)



Limit output to objects of this type

(Supported in all MySQL 5.7 based releases)



Do not qualify table names

(Supported in all MySQL 5.7 based releases)


ndb_show_tables [-c connection_string]
  • --database, -d

    Specifies 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_DB database, ndb_show_tables issues a warning.

  • --loops, -l

    Specifies 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.

  • --parsable, -p

    Using this option causes the output to be in a format suitable for use with LOAD DATA.

  • --show-temp-status

    If specified, this causes temporary tables to be displayed.

  • --type, -t

    Can be used to restrict the output to one type of object, specified by an integer type code as shown here:

    • 1: System table

    • 2: User-created table

    • 3: Unique hash index

    Any other value causes all NDB database objects to be listed (the default).

  • --unqualified, -u

    If specified, this causes unqualified object names to be displayed.


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 21.4.25, “ndb_select_all — Print Rows from an NDB Table”).

Prior to NDB 7.5.18 and 7.6.14, this program printed NDBT_ProgramExit - status upon completion of its run, due to an unnecessary dependency on the NDBT testing library. This dependency is has now been removed, eliminating the extraneous output.