How Can I Use Hyphens in MySQL Table Field Names Without Errors?

Use hyphens in MySQL table field names

When creating table fields, you may need to include hyphens in the field names. However, traditional query methods may encounter errors when working with fields that contain a hyphen, since this character is often treated as a delimiter.

Solution: Delimited identifiers

To overcome this problem, MySQL provides the option to use delimited identifiers when naming table fields. Delimited identifiers allow punctuation, spaces, and even SQL reserved words by enclosing the field name in backticks (`). For example:

<code class="language-sql">CREATE TABLE my_table (
  `ds-product` VARCHAR(255)
);</code>

MySQL alternative: ANSI_QUOTES SQL mode

Another option unique to MySQL is to set the ANSI_QUOTES SQL mode, which allows the use of double quotes (" ") as delimiters. This allows the following syntax:

<code class="language-sql">CREATE TABLE my_table (
  "ds-product" VARCHAR(255)
);</code>

By using delimited identifiers or setting the ANSI_QUOTES SQL mode, you can create table fields that contain hyphens, allowing them to be used in queries without causing errors.

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