Rechercher dans le manuel MySQL

22.4.2 ndbinfo_select_all — Select From ndbinfo Tables

ndbinfo_select_all is a client program that selects all rows and columns from one or more tables in the ndbinfo database

Not all ndbinfo tables available in the mysql client can be read by this program. In addition, ndbinfo_select_all can show information about some tables internal to ndbinfo which cannot be accessed using SQL, including the tables and columns metadata tables.

To select from one or more ndbinfo tables using ndbinfo_select_all, it is necessary to supply the names of the tables when invoking the program as shown here: 

shell> ndbinfo_select_all table_name1  [table_name2] [...]

For example: 

shell> ndbinfo_select_all logbuffers logspaces
== logbuffers ==
node_id log_type        log_id  log_part        total   used    high
5       0       0       0       33554432        262144  0
6       0       0       0       33554432        262144  0
7       0       0       0       33554432        262144  0
8       0       0       0       33554432        262144  0
== logspaces ==
node_id log_type        log_id  log_part        total   used    high
5       0       0       0       268435456       0       0
5       0       0       1       268435456       0       0
5       0       0       2       268435456       0       0
5       0       0       3       268435456       0       0
6       0       0       0       268435456       0       0
6       0       0       1       268435456       0       0
6       0       0       2       268435456       0       0
6       0       0       3       268435456       0       0
7       0       0       0       268435456       0       0
7       0       0       1       268435456       0       0
7       0       0       2       268435456       0       0
7       0       0       3       268435456       0       0
8       0       0       0       268435456       0       0
8       0       0       1       268435456       0       0
8       0       0       2       268435456       0       0
8       0       0       3       268435456       0       0
shell>

The following table includes options that are specific to ndbinfo_select_all. Additional descriptions follow the table. For options common to most NDB Cluster programs (including ndbinfo_select_all), see Section 22.4.31, “Options Common to NDB Cluster Programs — Options Common to NDB Cluster Programs”.

Table 22.335 Command-line options for the ndbinfo_select_all program

Format Description Added, Deprecated, or Removed

--delay=#

Set the delay in seconds between loops. Default is 5.

All NDB 8.0 releases

--loops=#,

-l

Set the number of times to perform the select. Default is 1.

All NDB 8.0 releases

--database=db_name,

-d

Name of the database where the table located.

All NDB 8.0 releases

--parallelism=#,

-p

Set the degree of parallelism.

All NDB 8.0 releases


  • --delay=seconds

    Property Value
    Command-Line Format --delay=#
    Type Numeric
    Default Value 5
    Minimum Value 0
    Maximum Value MAX_INT

    This option sets the number of seconds to wait between executing loops. Has no effect if --loops is set to 0 or 1.

  • --loops=number, -l number

    Property Value
    Command-Line Format --loops=#
    Type Numeric
    Default Value 1
    Minimum Value 0
    Maximum Value MAX_INT

    This option sets the number of times to execute the select. Use --delay to set the time between loops.


Find a PHP function

Document created the 26/06/2006, last modified the 26/10/2018
Source of the printed document:https://www.gaudry.be/en/mysql-rf-mysql-cluster-programs-ndbinfo-select-all.html

The infobrol is a personal site whose content is my sole responsibility. The text is available under CreativeCommons license (BY-NC-SA). More info on the terms of use and the author.

References

  1. View the html document Language of the document:en Manuel MySQL : https://dev.mysql.com/

These references and links indicate documents consulted during the writing of this page, or which may provide additional information, but the authors of these sources can not be held responsible for the content of this page.
The author This site is solely responsible for the way in which the various concepts, and the freedoms that are taken with the reference works, are presented here. Remember that you must cross multiple source information to reduce the risk of errors.

Contents Haut