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SQL For Multiple Active Policies
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SQL For Multiple Active Policies

MediumSQL · PostgreSQL

Problem

Write a SQL query to identify policyholders who have multiple active policies across different product lines.

Use the policyholders and policies tables. Treat policies with status Active as active.

Output

  1. Return one row per qualifying policyholder.
  2. Include policyholder_id, policyholder_name, active_policy_count, and product_lines.
  3. Include only policyholders with active policies in at least two distinct product lines.
  4. Sort by policyholder_id ascending.

Schema

policyholders
ColumnTypeDescription
policyholder_idPKINTUnique identifier for the policyholder
policyholder_nameVARCHAR(100)Full name of the policyholder
emailVARCHAR(150)Policyholder email address
policies
ColumnTypeDescription
policy_idPKINTUnique identifier for the policy
policyholder_idINTPolicyholder associated with the policy
product_lineVARCHAR(80)Insurance product line for the policy
statusVARCHAR(20)Current policy status
effective_dateDATEDate coverage became effective
expiration_dateDATEDate coverage expires
Tablespolicyholderspolicies
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