brief introduction
The entry to advanced level of SQL includes two books: "SQL Basic Knowledge" and "SQL Advanced Knowledge", originally produced by the public account [SQL Database Development].
The content covers all the content of SQL basic and advanced grammar, not only the explanation of each grammar of SQL, but also a large number of example explanations and annotations, easy to understand and convenient for practical operation. In addition, the sample database script in the article is attached for everyone to learn and use.
Document directory
SQL basic knowledge screenshot
SQL advanced knowledge screenshot
method of obtaining
The high-definition e-books of "SQL Basic Knowledge" and "SQL Advanced Knowledge" have been packaged and can be obtained through the following steps:
Long press the following public account , and reply to the key word in the background: SQL20
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回复「SQL20」即可获取资料
说个题外话，大家应该都知道视频号了，随着灰度范围扩大，越来越多的小伙伴都开通了视频号。
SQL君也开通了一个视频号，会分享一些数据库管理维护的技巧和SQL查询小技巧，欢迎扫码关注，和SQL君一起学SQL！
「没有开通发布权限的尽量多互动点赞，提升活跃度可以更快开通哦」
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即可关注