How to solve the conflict between SQL column names and keywords
In a SQL database, if the column name has the same name as a reserved keyword, for example, the column name is "from", it will cause difficulty in data retrieval.
Avoid SQL Server ambiguity
SQL provides a clever solution: enclose column names in square brackets . This way, the SQL interpreter can distinguish between column names and keywords. For example:
<code class="language-sql">SELECT [from] FROM TableName;</code>
Another method of multi-table query
When querying multiple tables, you can use another syntax:
<code class="language-sql">SELECT table.[from] FROM table;</code>
This ensures that the column name is unambiguously identified in the specified table.
The above is the detailed content of How Do I Handle SQL Column Names That Are Also SQL Keywords?. For more information, please follow other related articles on the PHP Chinese website!