# 数据库\&模式\&数据类型
[CREATE DATABASE](https://support.huaweicloud.com/sqlreference-dws/dws_06_0156.html)
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[ALTER DATABASE](https://support.huaweicloud.com/sqlreference-dws/dws_06_0120.html)
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[DROP DATABASE](https://support.huaweicloud.com/sqlreference-dws/dws_06_0189.html)
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[CREATE SCHEMA](https://support.huaweicloud.com/sqlreference-dws/dws_06_0173.html)
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[ALTER SCHEMA](https://support.huaweicloud.com/sqlreference-dws/dws_06_0136.html)
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[DROP SCHEMA](https://support.huaweicloud.com/sqlreference-dws/dws_06_0204.html)
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[CREATE EXTERNAL SCHEMA](https://support.huaweicloud.com/sqlreference-dws/dws_06_0367.html)
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[ALTER EXTERNAL SCHEMA](https://support.huaweicloud.com/sqlreference-dws/dws_06_0366.html)
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[CREATE TYPE](https://support.huaweicloud.com/sqlreference-dws/dws_06_0185.html)
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[ALTER TYPE](https://support.huaweicloud.com/sqlreference-dws/dws_06_0148.html)
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[DROP TYPE](https://support.huaweicloud.com/sqlreference-dws/dws_06_0213.html)
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