Vol. I · A Postgres HandbookTwelve chapters · · 756 queries

The Query & the Schema

A reading-room reference for writing PostgreSQL by hand — selects to window functions, with the schema in plain view.

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Chapters · Basic SELECT · Query 007 / 136
EasyBasic SELECT

Select employees with column aliases

The query

SQL
SELECT
  emp_id AS "Employee ID",
  first_name || ' ' || last_name AS full_name,
  salary AS "Monthly Salary"
FROM employees;
Tested against PostgreSQL 16

Note

“Use || for string concatenation in PostgreSQL. Aliases with spaces need double quotes.

Tables referenced

  • employees10 cols

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The Query & the Schema

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Compiled for Postgres 16 · MMXXVI