How can Oracle perform a fuzzy match on multiple strings?

1 year ago
Emily Johnson
1 minute

To perform a fuzzy match on multiple strings in Oracle, you can use the LIKE operator and wildcards.

There are two commonly used symbols for wildcards.

  1. Percentage sign (%): used to indicate any length of string.
  2. Underscore (_) : Used to represent a single character.

Here are some examples of using the LIKE operator and wildcards for fuzzy matching:

  1. Find values that start with a specific string.
SELECT * FROM 表名 WHERE 列名 LIKE '字符串%'

For example, matching values that start with “abc”:

SELECT * FROM 表名 WHERE 列名 LIKE 'abc%'
  1. Find values that end with a specific string.
SELECT * FROM 表名 WHERE 列名 LIKE '%字符串'

For example, matching values ending with “xyz”.

SELECT * FROM 表名 WHERE 列名 LIKE '%xyz'

3. 匹配包含特定字符串的值：
```sql
SELECT * FROM 表名 WHERE 列名 LIKE '%字符串%'

For example, match values that contain “def”:

SELECT * FROM 表名 WHERE 列名 LIKE '%def%'

Please note that the position of wildcards can be adjusted in the expression as needed.

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