Generate SQL IN Clauses from Excel in Seconds

2026-01-14By Cole Tenold3 min read
SQLExcelDatabase

You have a list of customer IDs in a spreadsheet. You need to query them in SQL. Building the IN clause manually is tedious.

The Manual Way (Slow)

You start with:

Customer ID
12345
67890
11223

You need:

WHERE customer_id IN (12345, 67890, 11223)

Manually: add commas, remove the duplicate, wrap in parentheses. For long lists, this takes 10+ minutes and you'll probably miss something.

The Fast Way

  • Copy your column from Excel
  • Paste into ClipboardTools
  • Select "SQL IN Clause" format
  • Copy the result (Ctrl+Enter)

Duplicates are removed. Integers stay unquoted. Strings get single quotes.

String Values

For text data like status codes:

Input:

Status
active
pending
approved

Output:

IN ('active', 'pending', 'approved')

Integer Values

For numeric IDs:

Input:

Customer ID
12345
67890
11223

Output:

IN (12345, 67890, 11223)

ClipboardTools detects the data type automatically.

Handling Dirty Data

Spreadsheet exports often have issues:

  • Extra spaces: 12345 becomes 12345
  • Trailing commas: 12345, becomes 12345
  • Duplicates: Removed unless you toggle the option off

Full Query Example

SELECT order_id, customer_name, total
FROM orders
WHERE customer_id IN (12345, 67890, 11223)
  AND status = 'completed'
  AND order_date >= '2025-01-01'
ORDER BY order_date DESC;

Large Lists

For lists over 1000 items, consider:

  • Breaking into multiple IN clauses
  • Using a temporary table with a JOIN
  • Checking that the column is indexed

Most databases handle IN clauses up to 1000 items without performance issues.

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