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DuckDB 1.3 ドキュメント 全文検索
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- SQL Introduction – DuckDB 9414
- This page is for DuckDB 1.3, which is outdated. Switch to the current version . Search Shortcut cmd + k | ctrl + k Installation Documentation Getting Started Connect Overview Concurrency Data Import Overview Data Sources CSV Files Overview
...me columns, e.g., if the prcp is unknown: INSERT INTO weather ( date , city , temp_hi , temp_lo ) VALUES ( '1994-11-29' , 'Hayward' , 54 , 37 ); Tip Many developers consider explicitly listing the columns better style than relying on the order implicitl...he output should be: city temp_lo temp_hi prcp date San Francisco 46 50 0.25 1994-11-27 San Francisco 43 57 0.0 1994-11-29 Hayward 37 54 NULL 1994-11-29 You can write expressions, not just simple column references, in the select list. For example, you c...avg , date FROM weather ; This should give: city temp_avg date San Francisco 48.0 1994-11-27 San Francisco 50.0 1994-11-29 Hayward 45.5 1994-11-29 Notice how the AS clause is used to relabel the output column. (The AS clause is optional.) A query can be... - https://man.mtool.work/duckdb/1.3/sql/introduction.html
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