ServiceNow: how to query fields across two tables without a SQL JOIN

TL;DR

ServiceNow uses reference fields (its foreign keys) instead of JOINs. Dot-walk through the reference field, e.g. sys_user.company, to reach fields on the referenced record.

Fix

1. ServiceNow uses reference fields (its foreign keys) instead of JOINs. Expected: You get the expected result; the problem is gone.

When to use

• You are setting up or using this ServiceNow feature.
• The symptom matches: how to query fields across two tables without a SQL JOIN.

When NOT to use

• Unrelated ServiceNow issues (different feature, different failure).
• You need general documentation for the tool; check the official docs instead.

Compatibility

Reported against ServiceNow.

Variant phrasings

how to query fields across two tables without a SQL JOIN

Why it happens

Stack Overflow question (score 5): a SQL user cannot find how to join two ServiceNow tables in a single query.

Edge cases

• If your error message differs even slightly, this is probably a different issue; search the exact text.
• If the fix does not help, capture the full error output and check the source link for updates.

Stack Overflow question (score 5): a SQL user cannot find how to join two ServiceNow tables in a single query. Resolved: ServiceNow uses reference fields (its foreign keys) instead of JOINs. Dot-walk through the reference field, e.g. sys_user.company, to reach fields on the referenced record. You query related-table data by chaining through the reference, not with SQL-style joins. Source: https://stackoverflow.com/questions/42329686/servicenow-how-to-write-a-select-query-retrieving-values-from-2-tables