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d484d2f684
This now gives a clean RAT check with bin/check-rat-report.py, which is one way for the Impala community to check compliance with ASF rules on intellectual property. Change-Id: I2ad06435f84a65ba126759e42a18fdaf52cd7036 Reviewed-on: http://gerrit.cloudera.org:8080/5232 Reviewed-by: Jim Apple <jbapple-impala@apache.org> Tested-by: Impala Public Jenkins Reviewed-by: John Russell <jrussell@cloudera.com>
68 lines
2.5 KiB
XML
68 lines
2.5 KiB
XML
<?xml version="1.0" encoding="UTF-8"?>
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<!--
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Licensed to the Apache Software Foundation (ASF) under one
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or more contributor license agreements. See the NOTICE file
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distributed with this work for additional information
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regarding copyright ownership. The ASF licenses this file
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to you under the Apache License, Version 2.0 (the
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"License"); you may not use this file except in compliance
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with the License. You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing,
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software distributed under the License is distributed on an
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"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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KIND, either express or implied. See the License for the
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specific language governing permissions and limitations
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under the License.
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-->
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<!DOCTYPE concept PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd">
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<concept rev="1.1" id="drop_view">
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<title>DROP VIEW Statement</title>
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<titlealts audience="PDF"><navtitle>DROP VIEW</navtitle></titlealts>
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<prolog>
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<metadata>
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<data name="Category" value="Impala"/>
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<data name="Category" value="SQL"/>
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<data name="Category" value="DDL"/>
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<data name="Category" value="Schemas"/>
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<data name="Category" value="Tables"/>
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<data name="Category" value="Views"/>
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</metadata>
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</prolog>
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<conbody>
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<p>
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<indexterm audience="Cloudera">DROP VIEW statement</indexterm>
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Removes the specified view, which was originally created by the <codeph>CREATE VIEW</codeph> statement.
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Because a view is purely a logical construct (an alias for a query) with no physical data behind it,
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<codeph>DROP VIEW</codeph> only involves changes to metadata in the metastore database, not any data files in
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HDFS.
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</p>
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<p conref="../shared/impala_common.xml#common/syntax_blurb"/>
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<codeblock>DROP VIEW [IF EXISTS] [<varname>db_name</varname>.]<varname>view_name</varname></codeblock>
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<p conref="../shared/impala_common.xml#common/ddl_blurb"/>
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<p conref="../shared/impala_common.xml#common/cancel_blurb_no"/>
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<p conref="../shared/impala_common.xml#common/permissions_blurb_no"/>
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<p conref="../shared/impala_common.xml#common/example_blurb"/>
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<p conref="../shared/impala_common.xml#common/create_drop_view_examples"/>
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<p conref="../shared/impala_common.xml#common/related_info"/>
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<p>
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<xref href="impala_views.xml#views"/>, <xref href="impala_create_view.xml#create_view"/>,
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<xref href="impala_alter_view.xml#alter_view"/>
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</p>
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</conbody>
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</concept>
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