49 lines
1.2 KiB
Markdown
49 lines
1.2 KiB
Markdown
---
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{
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"title": "DESCRIBE",
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"language": "zh-CN"
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}
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---
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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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# DESCRIBE
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## description
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该语句用于展示指定 table 的 schema 信息
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语法：
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DESC[RIBE] [db_name.]table_name [ALL];
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说明：
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如果指定 ALL，则显示该 table 的所有 index(rollup) 的 schema
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## example
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1. 显示Base表Schema
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DESC table_name;
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2. 显示表所有 index 的 schema
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DESC db1.table_name ALL;
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## keyword
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DESCRIBE,DESC
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