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### What changes were proposed in this pull request? Change the link to the Scala API document. ``` $ git grep "#org.apache.spark.package" docs/_layouts/global.html: <li><a href="api/scala/index.html#org.apache.spark.package">Scala</a></li> docs/index.md:* [Spark Scala API (Scaladoc)](api/scala/index.html#org.apache.spark.package) docs/rdd-programming-guide.md:[Scala](api/scala/#org.apache.spark.package), [Java](api/java/), [Python](api/python/) and [R](api/R/). ``` ### Why are the changes needed? The home page link for Scala API document is incorrect after upgrade to 3.0 ### Does this PR introduce any user-facing change? Document UI change only. ### How was this patch tested? Local test, attach screenshots below: Before:  After:  Closes #27549 from xuanyuanking/scala-doc. Authored-by: Yuanjian Li <xyliyuanjian@gmail.com> Signed-off-by: Sean Owen <srowen@gmail.com>
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| layout | title | displayTitle | license |
|---|---|---|---|
| global | DROP DATABASE | DROP DATABASE | 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
Drop a database and delete the directory associated with the database from the file system. An exception will be thrown if the database does not exist in the system.
Syntax
{% highlight sql %} DROP ( DATABASE | SCHEMA ) [ IF EXISTS ] dbname [ RESTRICT | CASCADE ] {% endhighlight %}
Parameters
DATABASE | SCHEMA- `DATABASE` and `SCHEMA` mean the same thing, either of them can be used.
IF EXISTS- If specified, no exception is thrown when the database does not exist.
RESTRICT- If specified, will restrict dropping a non-empty database and is enabled by default.
CASCADE- If specified, will drop all the associated tables and functions.
Example
{% highlight sql %}
-- Create inventory_db Database
CREATE DATABASE inventory_db COMMENT 'This database is used to maintain Inventory';
-- Drop the database and it's tables DROP DATABASE inventory_db CASCADE; +---------+ | Result | +---------+ +---------+
-- Drop the database using IF EXISTS DROP DATABASE IF EXISTS inventory_db CASCADE; +---------+ | Result | +---------+ +---------+
{% endhighlight %}