您可以使用SELECT、INSERT、UPDATE、DELETE、CREATE和DROP等 SQL 語句,完成與資料庫執行所需的幾乎所有作業。 雖然這些 SQL 語句是 SQL 標準的一部分,但許多資料庫管理系統也有自己的其他專屬延伸模組來處理該資料庫管理系統的特定數據。 這些擴充能提供 SQL 標準未涵蓋的功能,並包含如安全性
下列範例會建立新的資料庫資料表。 括號之間的項目會指定每個資料行的詳細資料,包括名稱、資料類型、資料行是否必須一律包含值 (NOT NULL),以及資料行中的資料是用來唯一識別資料列 (PRIMARY KEY)。 每個資料表都應該要有主索引鍵,不過 SQL 並不會強制執行此規則。
Understanding the market demand, SQL Training courses are designed for passionate professionals, who want to authenticate their skills in working with the SQL server eco-system, RDBMS, business intelligence, and more. Microsoft SQL Server Training is a certification recognized worldwide. This ensures ...
在本练习中,你将结合从模块中学到的知识来演练一个方案。 你将学习如何添加新的数据分类和动态数据掩码,然后你将了解用于审核尝试查看标记进行数据分类的列的用户的各种方法。 本练习结合了你在有关管理安全性的模块中已学到的一些知识。 配置数据分类和掩码 在Azure 门户中,转到 Azure SQL 数据库实例(而...
A basic understanding of how your data is stored. Familiarity with the basics of creating flows. For this unit, it's assumed that you know how to perform these actions. Vihje Column names in the source and destination don't need to match (unless the column's data type is choice), but...
Apache Flink® SQL Training This repository provides a training for Flink's SQL API. In this training you will learn to: run SQL queries on streams. use Flink's SQL CLI client. perform window aggregations, stream joins, and pattern matching with SQL queries. ...
Data Construction for Pre-training 对于构造数据,作者仿照Score来构造预训练数据,像Score他的做法是首先根据模版生成单轮的utterance-SQL 对,然后再基于模版生成后续的多轮对话utterance-SQL 对,他生成了435K个text-to-SQL个对话。 作者这里和他的做法稍有一点区别就是,首先他用bart来生成查询问题,然后他不像Score...
Thiscourseis launching April 8th, 2025 for $10 for 24 hours. Then it will be $50 until April 13th. Below is a summary of the contents of the course. Module 1 – Choosing to consult This module is a reality check on why you want to consult and what things you should consider before...
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SQLCourse.com is an interactive online training course for SQL beginners and advanced SQL programmers. Learn with our unique SQL tutorials today.