[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\_stmt\_explain

```ts
function sqlite3_stmt_explain(
  deps: SqliteWasmDep,
): (pStmt: SqliteStmtPtr, eMode: number) => SqliteResultCode;
```

Defined in: [packages/sqlite-wasm/src/CApi.ts:1968](https://github.com/evoluhq/evolu/blob/bc4578a260dd15d5bbf94b83765ca05984d194cb/packages/sqlite-wasm/src/CApi.ts#L1968)

Makes a statement behave as if its SQL began with EXPLAIN (eMode 1), EXPLAIN
QUERY PLAN (2) or neither (0), possibly re-preparing it. It fails while the
statement is active, so reset it first.

Wasm type `i(ii)`. Signature `["sqlite3_stmt_explain", "int",
"sqlite3_stmt*", "int"]` from SQLite's table.

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