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Placement Velocity SQL Query

MediumSQL · PostgreSQL00:00
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Your question is Placement Velocity SQL Query. Start with the requirements and the two tables on the right.

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Problem

Write a SQL query to identify branches with the highest candidate placement velocity over the last quarter.

Use the supplied branch and placement data. Treat velocity as completed placements per 30 calendar days during the last completed calendar quarter, and include ties for the highest velocity.

Output

  1. One row per branch tied for the highest velocity.
  2. Columns: branch_id, branch_name, placements_count, velocity_per_30_days, and velocity_rank.
  3. Order by branch_name ascending.

Schema

branches
ColumnTypeDescription
branch_idPKINTUnique branch identifier
branch_nameVARCHAR(100)Manpower Belgium branch name
cityVARCHAR(100)City where the branch operates
candidate_placements
ColumnTypeDescription
placement_idPKINTUnique placement identifier
branch_idINTBranch responsible for the placement
placement_dateDATEDate the candidate placement was recorded
placement_statusVARCHAR(30)Current placement status
Tablesbranchescandidate_placements
Your solutionPostgreSQL
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