This? hbase(main):002:0> help "alter" Alter column family schema; pass table name and a dictionary specifying new column family schema. Dictionaries are described on the main help command output. Dictionary must include name of column family to alter. For example,
To change or add the 'f1' column family in table 't1' from defaults to instead keep a maximum of 5 cell VERSIONS, do: hbase> alter 't1', NAME => 'f1', VERSIONS => 5 To delete the 'f1' column family in table 't1', do: hbase> alter 't1', NAME => 'f1', METHOD => 'delete' or a shorter version: hbase> alter 't1', 'delete' => 'f1' 2013/9/10 Ramasubramanian Narayanan <[email protected]> > Manish, > > I need to delete all the columns for a particular column family of a given > rowkey... I don't want to specify the column name (qualifier name) one by > one to delete..... > > Pls let me know is there any way to delete like that... > > regards, > Rams > > > On Tue, Sep 10, 2013 at 2:06 PM, manish dunani <[email protected]> > wrote: > > > If you want to delete rowkey for particular columnfamily then you need to > > mention individually::>>> > > > > >delete 'ttttt','333','TWO:qualifier_name' > > > > This will definitely delete the records which you are looking for. > > Please revert back if it is not work. > > > > > > On Tue, Sep 10, 2013 at 1:40 PM, manish dunani <[email protected]> > > wrote: > > > > > hey rama, > > > > > > Try this:: > > > > > > >*deleteall 'ttttt','333'* > > > * > > > * > > > I hope it will definitely works for you!! > > > > > > > > > > > > > > > On Tue, Sep 10, 2013 at 1:31 PM, Ramasubramanian Narayanan < > > > [email protected]> wrote: > > > > > >> Dear All, > > >> > > >> Requirement is to delete all columns which belongs to a column family > > and > > >> for a particular rowkey. > > >> > > >> Have tried with the below command but record is not getting deleted. > > >> > > >> * hbase> deleteall 't1', 'r1', 'c1'* > > >> * > > >> * > > >> *Test result :* > > >> * > > >> * > > >> 3) Scan the table 'ttttt' > > >> > > >> hbase(main):025:0> scan 'ttttt' > > >> ROW COLUMN+CELL > > >> 111 column=ONE:ename, > > >> timestamp=1378459582478, value=aaaa > > >> 111 column=ONE:eno, > > >> timestamp=1378459582335, value=1000 > > >> 111 column=ONE:sal, > > >> timestamp=1378459582515, value=1500 > > >> 111 column=TWO:ename, > > >> timestamp=1378459582655, value=dddd > > >> 111 column=TWO:eno, > > >> timestamp=1378459582631, value=4000 > > >> 222 column=ONE:ename, > > >> timestamp=1378459582702, value=bbbb > > >> 222 column=ONE:eno, > > >> timestamp=1378459582683, value=2000 > > >> 222 column=ONE:sal, > > >> timestamp=1378459582723, value=2500 > > >> 222 column=TWO:ename, > > >> timestamp=1378459582779, value=gggg > > >> 222 column=TWO:eno, > > >> timestamp=1378459582754, value=4000 > > >> 222 column=TWO:sal, > > >> timestamp=1378459582798, value=7500 > > >> 333 column=ONE:ename, > > >> timestamp=1378459582880, value=sss > > >> 333 column=ONE:eno, > > >> timestamp=1378459582845, value=9000 > > >> 333 column=ONE:sal, > > >> timestamp=1378459582907, value=6500 > > >> 333 column=TWO:ename, > > >> timestamp=1378459582950, value=zzz > > >> 333 column=TWO:eno, > > >> timestamp=1378459582931, value=6666 > > >> 333 column=TWO:sal, > > >> timestamp=1378459582968, value=6500 > > >> 3 row(s) in 0.0440 seconds > > >> > > >> > > >> > > > ------------------------------------------------------------------------------------------------------------------------------------- > > >> 4) Delete the records from the table 'ttttt' in the rowkey '333' in > the > > >> column family 'TWO' > > >> > > >> > > >> hbase(main):027:0> deleteall 'ttttt','333','TWO' > > >> 0 row(s) in 0.0060 seconds > > >> > > >> > > >> > > > ------------------------------------------------------------------------------------------------------------------------------------- > > >> > > >> 5) After deleting scan the table > > >> > > >> hbase(main):028:0> scan 'ttttt' > > >> ROW COLUMN+CELL > > >> 111 column=ONE:ename, > > >> timestamp=1378459582478, value=aaaa > > >> 111 column=ONE:eno, > > >> timestamp=1378459582335, value=1000 > > >> 111 column=ONE:sal, > > >> timestamp=1378459582515, value=1500 > > >> 111 column=TWO:ename, > > >> timestamp=1378459582655, value=dddd > > >> 111 column=TWO:eno, > > >> timestamp=1378459582631, value=4000 > > >> 222 column=ONE:ename, > > >> timestamp=1378459582702, value=bbbb > > >> 222 column=ONE:eno, > > >> timestamp=1378459582683, value=2000 > > >> 222 column=ONE:sal, > > >> timestamp=1378459582723, value=2500 > > >> 222 column=TWO:ename, > > >> timestamp=1378459582779, value=gggg > > >> 222 column=TWO:eno, > > >> timestamp=1378459582754, value=4000 > > >> 222 column=TWO:sal, > > >> timestamp=1378459582798, value=7500 > > >> 333 column=ONE:ename, > > >> timestamp=1378459582880, value=sss > > >> 333 column=ONE:eno, > > >> timestamp=1378459582845, value=9000 > > >> 333 column=ONE:sal, > > >> timestamp=1378459582907, value=6500 > > >> 333 column=TWO:ename, > > >> timestamp=1378459582950, value=zzz > > >> 333 column=TWO:eno, > > >> timestamp=1378459582931, value=6666 > > >> 333 column=TWO:sal, > > >> timestamp=1378459582968, value=6500 > > >> 3 row(s) in 0.0310 seconds > > >> > > >> Observation :- > > >> ------------------ > > >> No records got deleted > > >> > > >> regards, > > >> Rams > > >> > > > > > > > > > > > > -- > > > Regards > > > > > > *Manish Dunani* > > > *Contact No* : +91 9408329137 > > > *skype id* : manish.dunani* > > > * > > > > > > > > > > > > > > > -- > > Regards > > > > *Manish Dunani* > > *Contact No* : +91 9408329137 > > *skype id* : manish.dunani* > > * > > >
