英语

一：inner_join是什么意思（中英文）解释的意思

inner_join是一种数据库操作，用于将两个表格中具有相同值的行连接起来，从而创建一个新的表格。它基于两个表格之间的共同列，只保留两个表格中都存在的数据行。

Inner join is a type of database operation that combines rows from two tables based on a common column, creating a new table. It only keeps the rows that have matching values in both tables.

二：怎么读（音标）

[ˈɪnər dʒɔɪn]

三：用法

Inner join通常在SQL语句中使用，可以使用关键字INNER JOIN或简写为JOIN来表示。它与其他类型的连接操作（如left join和right join）相比，更严格地筛选数据，只保留两个表格中都存在的数据。

Inner join is typically used in SQL statements, and can be represented by the keywords INNER JOIN or simply JOIN. Compared to other types of join operations (such as left join and right join), it filters data more strictly, only keeping rows that exist in both tables.

四：例句1-5句且中英对照

1. The inner join between the customers and orders tables resulted in a new table with only the matching customer orders.

内部连接顾客和订单表后得到一个只包含匹配顾客订单的新表。

2. The inner join operation is commonly used to combine data from multiple tables into one.

内部连接操作通常用于将多张表格的数据合并为一张表。

3. Only the rows with matching values in both tables will be included in the result of an inner join.

内部连接的结果只包含两个表格中具有相同值的行。

4. In order to perform an inner join, the two tables must have a common column to base the join on.

为了进行内部连接，两个表格必须具有共同的列来作为连接的基准。

5. The inner join can help to eliminate redundant data and create a more efficient database structure.

内部连接可以帮助消除冗余数据，创建更高效的数据库结构。

五：同义词及用法

Inner join也可以被称为equi-join，表示它基于相等条件来连接两个表格。它与outer join（包括left、right和full outer join）是相对的，outer join会保留不匹配的数据行。

Inner join can also be referred to as equi-join, indicating that it joins two tables based on equality conditions. It is opposite to outer joins (including left, right, and full outer joins), which retain unmatched rows.

六：编辑总结

Inner join是一种常用的数据库操作，能够通过共同列将两个表格中的数据合并起来。它与其他类型的连接操作相比更严格，只保留匹配的数据行。使用inner join可以帮助我们更有效地管理和分析大量数据，并创建高效的数据库结构。