CHARINDEX in MySQL - Examples & AI Generator

The CHARINDEX function is natively available in SQL Server, but not in MySQL. Instead, you need to use INSTR or LOCATE to achieve the same result. This difference can slow down development or cause errors if you're switching databases. With AI2sql, you can instantly generate production-ready alternatives for CHARINDEX in MySQL, with no manual coding required. Skip memorizing syntax—describe what you need and let the AI handle query generation.

CHARINDEX Syntax in MySQL

How CHARINDEX Maps to MySQL

• In SQL Server: CHARINDEX(substring, string, [start])

• In MySQL: Use INSTR(string, substring) or LOCATE(substring, string, [start])

Example: To find where 'cat' first appears in the column description:

SELECT INSTR(description, 'cat') FROM products;

If you want more control over the search starting point, use LOCATE:

SELECT LOCATE('cat', description, 5) FROM products;

CHARINDEX Examples You Can Generate Instantly

Real MySQL CHARINDEX Use Cases

• Example 1: Find position of 'order' in customer notes

  SELECT customer_id, LOCATE('order', notes) AS position_found
  FROM customers WHERE LOCATE('order', notes) > 0;

• Example 2: Identify products containing 'eco' in the title

  SELECT product_id, title, INSTR(title, 'eco') AS first_eco_pos
  FROM products WHERE INSTR(title, 'eco') > 0;

• Example 3: Flag orders with 'urgent' in comments (starting from char 10)

  SELECT order_id, LOCATE('urgent', comments, 10) AS urgent_start
  FROM orders WHERE LOCATE('urgent', comments, 10) > 0;

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FAQ: CHARINDEX in MySQL

• Q: What is the MySQL version of CHARINDEX?
  A: MySQL uses INSTR() or LOCATE() in place of CHARINDEX.

• Q: Can I use start position like in CHARINDEX?
  A: Yes. Use LOCATE(substring, string, start) for custom start positions.

• Q: Does INSTR work with case sensitivity in MySQL?
  A: INSTR respects the collation of your table/column; use BINARY for case-sensitive searches if needed.

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