Syntax Error with Begin or Start transaction in Query Builder

The following query gives a syntax error in the query builder, while when I run this in phpmyadmin it works fine.

START TRANSACTION;
INSERT INTO wp_4_frm_items (item_key, form_id, post_id, user_id, parent_item_id, is_draft, updated_by, created_at, updated_at)
SELECT guid, 3 as form_id, 0 as post_id, 1 as user_id, 0 as parent_item_id, 0 as is_draft, 1 as updated_by, Now() as created_at, Now() as updated_at FROM reparaturo_repair_status
ON DUPLICATE KEY
UPDATE id=id;
COMMIT;

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