ndb_select_all
— Print Rows from an NDB Table
1644
•
--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.
•
--rowid
Adds a
ROWID
column providing information about the fragments in which rows are stored.
•
--gci
Adds a column to the output showing the global checkpoint at which each row was last updated. See
Section 17.1, “MySQL Cluster Overview”
, and
Section 17.5.6.2, “MySQL Cluster Log Events”
, for
more information about checkpoints.
•
--tupscan
,
-t
Scan the table in the order of the tuples.
•
--nodata
Causes any table data to be omitted.
Sample Output
Output from a MySQL
SELECT
statement:
mysql>
SELECT * FROM ctest1.fish;
+----+-----------+
| id | name |
+----+-----------+
| 3 | shark |
| 6 | puffer |
| 2 | tuna |
| 4 | manta ray |
| 5 | grouper |
| 1 | guppy |
+----+-----------+
6 rows in set (0.04 sec)
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
Note that all string values are enclosed by square brackets (“
[
...
]
”) in the output of
ndb_select_all
.
For a further example, consider the table created and populated as shown here:
CREATE TABLE dogs (
id INT(11) NOT NULL AUTO_INCREMENT,
name VARCHAR(25) NOT NULL,
breed VARCHAR(50) NOT NULL,
PRIMARY KEY pk (id),
KEY ix (name)
)
ENGINE=NDBCLUSTER;
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