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ndb_select_all prints all rows from an
NDB
table to
stdout
.
Usage
ndb_select_all -c connection_string tbl_name -d db_name [> file_name]
The following table includes options that are specific to the NDB Cluster native backup restoration program ndb_select_all. Additional descriptions follow the table. For options common to most NDB Cluster programs (including ndb_select_all), see Section 22.4.31, “Options Common to NDB Cluster Programs — Options Common to NDB Cluster Programs”.
Table 22.353 Command-line options for the ndb_select_all program
Format | Description | Added, Deprecated, or Removed |
---|---|---|
Name of the database in which the table is found | All NDB 8.0 releases |
|
Degree of parallelism | All NDB 8.0 releases |
|
Lock type | All NDB 8.0 releases |
|
Sort resultset according to index whose name is supplied | All NDB 8.0 releases |
|
Sort resultset in descending order (requires order flag) | All NDB 8.0 releases |
|
Print header (set to 0|FALSE to disable headers in output) | All NDB 8.0 releases |
|
Output numbers in hexadecimal format | All NDB 8.0 releases |
|
Set a column delimiter | All NDB 8.0 releases |
|
Print disk references (useful only for Disk Data tables having nonindexed columns) | All NDB 8.0 releases |
|
Print rowid | All NDB 8.0 releases |
|
Include GCI in output | All NDB 8.0 releases |
|
Include GCI and row epoch in output | All NDB 8.0 releases |
|
Scan in tup order | All NDB 8.0 releases |
|
Do not print table column data | All NDB 8.0 releases |
Name of the database in which the table is found. The default value is
TEST_DB
.Specifies the degree of parallelism.
--lock=
,lock_type
-l
lock_type
Employs a lock when reading the table. Possible values for
lock_type
are:0
: Read lock1
: Read lock with hold2
: Exclusive read lock
There is no default value for this option.
--order=
,index_name
-o
index_name
Orders the output according to the index named
index_name
.NoteThis is the name of an index, not of a column; the index must have been explicitly named when created.
Sorts the output in descending order. This option can be used only in conjunction with the
-o
(--order
) option.Excludes column headers from the output.
Causes all numeric values to be displayed in hexadecimal format. This does not affect the output of numerals contained in strings or datetime values.
--delimiter=
,character
-D
character
Causes the
character
to be used as a column delimiter. Only table data columns are separated by this delimiter.The default delimiter is the tab character.
Adds a disk reference column to the output. The column is nonempty only for Disk Data tables having nonindexed columns.
Adds a
ROWID
column providing information about the fragments in which rows are stored.Adds a
GCI
column to the output showing the global checkpoint at which each row was last updated. See Section 22.1, “NDB Cluster Overview”, and Section 22.5.6.2, “NDB Cluster Log Events”, for more information about checkpoints.Adds a
ROW$GCI64
column to the output showing the global checkpoint at which each row was last updated, as well as the number of the epoch in which this update occurred.Scan the table in the order of the tuples.
Causes any table data to be omitted.
Sample Output
Output from a MySQL SELECT
statement:
- +----+-----------+
- | id | name |
- +----+-----------+
- | 3 | shark |
- | 6 | puffer |
- | 2 | tuna |
- | 4 | manta ray |
- | 5 | grouper |
- | 1 | guppy |
- +----+-----------+
Output from the equivalent invocation of ndb_select_all:
shell> ./ndb_select_all -c localhost fish -d ctest1
id name
3 [shark]
6 [puffer]
2 [tuna]
4 [manta ray]
5 [grouper]
1 [guppy]
6 rows returned
NDBT_ProgramExit: 0 - OK
All string values are enclosed by square brackets
([
...]
) in the output of
ndb_select_all. For another example, consider
the table created and populated as shown here:
- )
- TABLESPACE ts STORAGE DISK
- ('', 'Lassie', 'collie'),
- ('', 'Scooby-Doo', 'Great Dane'),
- ('', 'Rin-Tin-Tin', 'Alsatian'),
- ('', 'Rosscoe', 'Mutt');
This demonstrates the use of several additional ndb_select_all options:
shell> ./ndb_select_all -d ctest1 dogs -o ix -z --gci --disk
GCI id name breed DISK_REF
834461 2 [Scooby-Doo] [Great Dane] [ m_file_no: 0 m_page: 98 m_page_idx: 0 ]
834878 4 [Rosscoe] [Mutt] [ m_file_no: 0 m_page: 98 m_page_idx: 16 ]
834463 3 [Rin-Tin-Tin] [Alsatian] [ m_file_no: 0 m_page: 34 m_page_idx: 0 ]
835657 1 [Lassie] [Collie] [ m_file_no: 0 m_page: 66 m_page_idx: 0 ]
4 rows returned
NDBT_ProgramExit: 0 - OK
Document created the 26/06/2006, last modified the 26/10/2018
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