从这里的答案和我自己的经验来看。如果您计划实现可移植，唯一可接受的答案是不要对表、列或其他名称使用SQL关键字。

所有这些答案都适用于各种数据库，但显然有很多不支持ANSI解决方案。

嗨，我在完全符合ANSI标准的Teradata系统上工作。使用双引号“”来命名这样的列。

例如，type是一个SQL保留关键字，当在引号中使用时，type被视为用户指定的名称。

参见下面的代码示例:

CREATE TABLE alpha1
AS
(
SEL
product1
type_of_product AS "type"
FROM beta1
) WITH DATA
PRIMARY INDEX (product1)

--type is a SQL reserved keyword

TYPE

--see? now to retrieve the column you would use:

SEL "type" FROM alpha1

一些可靠的答案——但投票最多的答案是狭隘的，只涉及SQL Server。总而言之:

If you have source control, the best solution is to stick to the rules, and avoid using reserved words. This list has been around for ages, and covers most of the peculiarities. One tip is that reserved words are rarely plural—so you're usually safe using plural names. Exceptions are DIAGNOSTICS, SCHEMAS, OCTETS, OFFSETS, OPTIONS, VALUES, PARAMETERS, PRIVILEGES and also verb-like words that also appear plural: OVERLAPS, READS, RETURNS, TRANSFORMS. Many of us don't have the luxury of changing the field names. There, you'll need to know the details of the RDBM you're accessing: For SQL Server use [square_braces] around the name. This works in an ODBC connection too. For MySQL use `back_ticks`. Postgres, Oracle and several other RDBMs will apparently allow "double_quotes" to be used.

在表名上加上冒犯性的单词也可以。

如果是在PostgreSQL中，在名字周围使用双引号，比如:

select "from" from "table";

注意:PostgreSQL内部自动将所有不带引号的命令和参数转换为小写。命令和标识符不区分大小写。sEleCt * from tAblE;解释为select * from table;。然而，双引号内的参数是原样使用的，因此是区分大小写的:select * from "table";and select * from "Table";从两个不同的表获取结果。

在Oracle SQL Developer中，pl/ SQL可以使用双引号，但如果使用双引号，则必须以大写字母输入列名。例如，从MY_TABLE中选择“FROM”

简单的解决方案

假设列名是from;因此，查询中的列名可以通过表别名引用

Select * from user u where u.from="US"