ERROR: bind message supplies 2 parameters, but prepared statement requires 1
The number of query parameters sent doesn’t match the $1, $2 … placeholders in the SQL.
Exact message you may see
bind message suppliesbut prepared statement requires
Seen on:
PostgreSQL
Meaning
Passing extra/missing values, placeholders inside quoted strings (which aren’t parameters), or reusing a parameter array for a different query.
Common causes
- Parameter array length mismatch
- '$1' inside quotes (literal text, not a parameter)
- Dynamic SQL built incorrectly
⚡ Quick fix
- Count placeholders and values
- Don’t quote placeholders: WHERE name = $1
- Log the final SQL and params
Detailed fix by platform
Node.js
pool.query('SELECT * FROM users WHERE email = $1 AND active = $2', [email, true]);
How to diagnose
- SQL — How many $n?
- Params — How many values?
🔧 Still not fixed?
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Similar errors
Most viewed in PostgreSQL
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Where this error sits
Origin: Data. Errors that are often confused with or caused by this one (click to open):
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Last updated 13 Oct 2026