How to achieve fuzzy querying by field in access?
To achieve a fuzzy search by field, you can use the LIKE operator in SQL with wildcards for fuzzy matching.
If there is a table called customers, with a field called name, we can use the following SQL statement to perform a fuzzy search by name:
SELECT * FROM customers WHERE name LIKE '%关键字%'
In the statement above, the percentage symbol (%) is a wildcard that represents matching any character any number of times. This query will return all records in the name field that contain the keyword.
To achieve a multi-field fuzzy search, you can combine multiple field search conditions using the OR operator, for example:
SELECT * FROM customers WHERE name LIKE '%关键字%' OR address LIKE '%关键字%'
The query statement above will return all records where the name or address fields contain the keyword.
It’s important to note that fuzzy queries can lead to performance issues, especially when searching in large tables. To improve query efficiency, consider creating indexes or using full-text search engines that are better suited for fuzzy queries.