The CREATE TABLE statement defines a new table using the definition/metadata of an existing table or view.
CREATE TABLE [IF NOT EXISTS] table_identifier LIKE source_table_identifier
USING data_source
[ ROW FORMAT row_format ]
[ STORED AS file_format ]
[ TBLPROPERTIES ( key1=val1, key2=val2, ... ) ]
[ LOCATION path ]
table_identifier
Specifies a table name, which may be optionally qualified with a database name.
Syntax: [ database_name. ] table_name
USING data_source
Data Source is the input format used to create the table. Data source can be CSV, TXT, ORC, JDBC, PARQUET, etc.
ROW FORMAT
SERDE is used to specify a custom SerDe or the DELIMITED clause in order to use the native SerDe.
STORED AS
File format for table storage, could be TEXTFILE, ORC, PARQUET, etc.
TBLPROPERTIES
Table properties that have to be set are specified, such as created.by.user, owner, etc.
LOCATION
Path to the directory where table data is stored, which could be a path on distributed storage like HDFS, etc. Location to create an external table.
-- Create table using an existing table
CREATE TABLE Student_Dupli like Student;
-- Create table like using a data source
CREATE TABLE Student_Dupli like Student USING CSV;
-- Table is created as external table at the location specified
CREATE TABLE Student_Dupli like Student location '/root1/home';
-- Create table like using a rowformat
CREATE TABLE Student_Dupli like Student
ROW FORMAT DELIMITED FIELDS TERMINATED BY ','
STORED AS TEXTFILE
TBLPROPERTIES ('owner'='xxxx');
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