### What changes were proposed in this pull request? Remove the unneeded embedded inline HTML markup by using the basic markdown syntax. Please see #28414 ### Why are the changes needed? Make the doc cleaner and easily editable by MD editors. ### Does this PR introduce _any_ user-facing change? No ### How was this patch tested? Manually build and check Closes #28451 from huaxingao/html_cleanup. Authored-by: Huaxin Gao <huaxing@us.ibm.com> Signed-off-by: Sean Owen <srowen@gmail.com>
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layout | title | displayTitle | license |
---|---|---|---|
global | CREATE TABLE LIKE | CREATE TABLE LIKE | Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements. See the NOTICE file distributed with this work for additional information regarding copyright ownership. The ASF licenses this file to You under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. |
Description
The CREATE TABLE
statement defines a new table using the definition/metadata of an existing table or view.
Syntax
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 ]
Parameters
-
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.
Examples
-- 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');