In what ways that SOQL differs from SQL

In what ways that SOQL differs from SQL

Here are some ways that SOQL differs from SQL.

No INSERT, UPDATE or DELETE statements, only SELECT
No command execution
No wild cards for fields; all fields must be explicitly typed
No JOIN statement; however, you can include information from parent objects like Select name, phone, account.name from contact
No UNION operator
Queries cannot be chained together

Cheers!!!

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