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The command that represents query in sql is

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Release: 2024-04-29 15:36:12
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The query command in SQL is SELECT. It allows users to extract specific data from database tables, the syntax is: SELECT [column name | expression] FROM [table name] [WHERE filter condition] [ORDER BY sort condition].

The command that represents query in sql is

The command that represents query in SQL: SELECT

In SQL, the command used to perform query operation is SELECT. It allows users to extract specific data from database tables.

Syntax:

<code class="sql">SELECT [列名|表达式]
FROM [表名]
[WHERE 筛选条件]
[ORDER BY 排序条件]</code>
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Parameters:

  • ##[Column name|Expression]: Column or expression to be returned.
  • [Table name]: The table to be queried.
  • [WHERE filter conditions]: Optional conditions for filtering results.
  • [ORDER BY sorting condition]: Optional condition for sorting results.

Example:

Query

customers All customer names in the table:

<code class="sql">SELECT name
FROM customers;</code>
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Query

orders Orders with an amount greater than $100 in the table:

<code class="sql">SELECT *
FROM orders
WHERE amount > 100;</code>
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Query

products The top 5 products in the table sorted by price in descending order:

<code class="sql">SELECT *
FROM products
ORDER BY price DESC
LIMIT 5;</code>
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