[API reference](https://evolu.dev/docs/api-reference) › [@evolu/sqlite-wasm](https://evolu.dev/docs/api-reference/sqlite-wasm) › [c-api](https://evolu.dev/docs/api-reference/sqlite-wasm/c-api) › sqlite3\_value\_nochange

```ts
function sqlite3_value_nochange(
  deps: SqliteWasmDep,
): (value: SqliteValuePtr) => number;
```

Defined in: [packages/sqlite-wasm/src/CApi.ts:2523](https://github.com/evoluhq/evolu/blob/bc4578a260dd15d5bbf94b83765ca05984d194cb/packages/sqlite-wasm/src/CApi.ts#L2523)

Within a virtual table's xUpdate, returns non-zero when the value's column is
unchanged by the UPDATE because xColumn set no result; such a value otherwise
looks like NULL. Anywhere else the result is meaningless.

Wasm type `i(i)`. Signature `["sqlite3_value_nochange", "int",
"sqlite3_value*"]` from SQLite's table.

See https://sqlite.org/c3ref/value_blob.html.