Task: Execute an SQL query in Microsoft SQL

n8n workflow JSON:
{"id":"99","name":"Execute an SQL query in Microsoft SQL","nodes":[{"name":"On clicking 'execute'","type":"n8n-nodes-base.manualTrigger","position":[250,300],"parameters":{},"typeVersion":1},{"name":"Microsoft SQL","type":"n8n-nodes-base.microsoftSql","position":[450,300],"parameters":{"query":"","operation":"executeQuery"},"credentials":{"microsoftSql":""},"typeVersion":1}],"active":false,"settings":{},"connections":{"On clicking 'execute'":{"main":[[{"node":"Microsoft SQL","type":"main","index":0}]]}}}