INSERT OVERWRITE DIRECTORY with Hive format
Applies to: Databricks Runtime
Overwrites the existing data in the directory with the new values using Hive SerDe
.
Hive support must be enabled to use this command. You specify the inserted rows by value expressions or the result of a query.
Syntax
INSERT OVERWRITE [ LOCAL ] DIRECTORY directory_path
[ ROW FORMAT row_format ] [ STORED AS file_format ]
{ VALUES ( { value | NULL } [ , ... ] ) [ , ( ... ) ] | query }
Parameters
directory_path
The destination directory. The
LOCAL
keyword specifies that the directory is on the local file system.row_format
The row format for this insert. Valid options are
SERDE
clause andDELIMITED
clause.SERDE
clause can be used to specify a customSerDe
for this insert. Alternatively,DELIMITED
clause can be used to specify the nativeSerDe
and state the delimiter, escape character, null character, and so on.file_format
The file format for this insert. Valid options are
TEXTFILE
,SEQUENCEFILE
,RCFILE
,ORC
,PARQUET
, andAVRO
. You can also specify your own input and output format usingINPUTFORMAT
andOUTPUTFORMAT
.ROW FORMAT SERDE
can only be used withTEXTFILE
,SEQUENCEFILE
, orRCFILE
, whileROW FORMAT DELIMITED
can only be used withTEXTFILE
.VALUES ( { value | NULL } [ , … ] ) [ , ( … ) ]
The values to be inserted. Either an explicitly specified value or a NULL can be inserted. A comma must be used to separate each value in the clause. More than one set of values can be specified to insert multiple rows.
query
A query that produces the rows to be inserted. One of following formats:
- A
SELECT
statement - A
TABLE
statement - A
FROM
statement
- A
Examples
INSERT OVERWRITE LOCAL DIRECTORY '/tmp/destination'
STORED AS orc
SELECT * FROM test_table;
INSERT OVERWRITE LOCAL DIRECTORY '/tmp/destination'
ROW FORMAT DELIMITED FIELDS TERMINATED BY ','
SELECT * FROM test_table;
Related statements
Σχόλια
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