Copying Data into Cassandra table -

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can import/copy multiple files acassandra table having same column name in table , in files?

copy table1(timestamp ,temp ,total_load ,designl) 'file1', 'file2' header = 'true';

i tried using above syntax: saying improper copy command.

i mean to suppose have 100's of delimiter files same columns, , want load files single cassandra table using single cql query?

is possible:?

when tried using each copy command each file table on writing data?

please me!

you can specify more tables following synax:

copy table1("timestamp", temp, total_load, designl) 'file1, file2' header = 'true';

or can use wildcards:

copy table1("timestamp", temp, total_load, designl) 'folder/*.csv' header = 'true';

two remarks however:

  • timestamp type name in cassandra, if column has name, need quote did in example above.
  • if data overwritten when executing several copy commands, overwritten if execute single copy command. if have several lines same primary key, last row win.

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