Beginner consuming: 0.5h
Note: CSDN end of the phone does not support chapter jumps within the chain, but the chain is available, also requested a better experience on the PC side.
A, HBase common shell operation ④ - Delete
1.1 and column name specified rowkey be deleted.
1.2 designated rowkey, column names and field values to delete.
1.3 To delete a column family.
1.4 Empty table data.
1.5 Delete table.
1.6 statistical table has a number of rows of data.
Memory words:
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B07 - 999, Big Data Components learning ④ - HBase
Beverage giant comfort zone Akzo || ♂ ♀ tired feel no love
A, HBase common shell operation ④ - Delete
1.1 to specify rowkey and column names were deleted.
- Remove user table row key is rk0001, a column identifier of info: a data name
delete 'user', 'rk0001', 'info:name'
1.2 to specify rowkey, column names and field values to delete.
delete 'user', 'rk0001', 'info:name', 1392383705316
1.3 to delete a column family.
alter 'user', NAME => 'info', METHOD => 'delete'
alter 'user', 'delete' => 'info'
1.4 ~ empty table data.
truncate 'user'
1.5 to delete the table.
# 首先需要先让该表为disable状态
disable 'user'
# 然后才能drop这个表
drop 'user'
Note: If the direct drop table, will get an error:. Drop the named table Table must first be disabled.
1.6 to statistics the number of rows of data in a table.
count 'user'
Rain vestibule ant trouble, after frost array Hong sorrow.
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※ worldly temptations so great that the firm always moved.
After an enterprise organizational innovation, its R & D department to develop new products faster and take on more tasks, reflecting:
...
A, flat organization structure
B, Structure virtualization
C, flexible organizational structure
D, Structure agile
...
C
Rain vestibule ant trouble, after frost array Hong sorrow.
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Note: CSDN end of the phone does not support chapter jumps within the chain, but the chain is available, also requested a better experience on the PC side.
I know my weakness, I know what you are picky, but I just I do not like fireworks, thank you for pointing, creating a piece of me :)!
Rain vestibule ant trouble, after frost array Hong sorrow.