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Subqueries – DuckDB 11228: This page is for DuckDB 1.3, which is outdated.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 ... when the subquery returns one or more records, and false otherwise. The EXISTS operator is generally the most useful as a correlated subquery to express semijoin operations. However, it can be used as an uncorrelated subquery as well. For example, we can ... when the subquery returns an empty result, and false otherwise. The NOT EXISTS operator is generally the most useful as a correlated subquery to express antijoin operations. For example, to find Person nodes without an interest: CREATE TABLE Person ( id B ... used the EXISTS operator: SELECT 'Math' IN ( SELECT course FROM grades ) AS math_grades_present ; math_grades_present true Correlated Subqueries All the subqueries presented here so far have been uncorrelated subqueries, where the subqueries themselves are ...; https://man.mtool.work/duckdb/1.3/sql/expressions/subqueries.html

FROM and JOIN Clauses – DuckDB 7485: This page is for DuckDB 1.3, which is outdated.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 ... ELECT * FROM range ( 3 ) t ( i ), LATERAL ( SELECT i + 1 ) t2 ( j ); i j 0 1 2 3 1 2 Lateral joins are a generalization of correlated subqueries, as they can return multiple values per input value rather than only a single value. SELECT * FROM generate_ser ...; https://man.mtool.work/duckdb/1.3/sql/query_syntax/from.html

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