Tagged articles

INTERSECT

2 articles · Page 1 of 1

Oct 16, 2022 · Databases

Unlock SQL’s CORRESPONDING Clause to Simplify UNION, INTERSECT, and EXCEPT in HSQLDB

This article explains the standard SQL CORRESPONDING keyword, shows how HSQLDB implements it with UNION, INTERSECT and EXCEPT, demonstrates the optional BY clause for column selection, and discusses its limited support in other dialects such as PostgreSQL.

CORRESPONDINGDatabasesEXCEPT

0 likes · 5 min read

Unlock SQL’s CORRESPONDING Clause to Simplify UNION, INTERSECT, and EXCEPT in HSQLDB

Aikesheng Open Source Community

Oct 12, 2022 · Databases

Using INTERSECT and EXCEPT in MySQL 8.0.31 and Workarounds for Earlier Versions

This article explains how MySQL 8.0.31 introduces native INTERSECT and EXCEPT set operators, demonstrates how to achieve the same intersection and difference results in MySQL 5.7 using joins, and shows usage of the ALL modifier for preserving duplicate rows.

EXCEPTINTERSECTMySQL

0 likes · 7 min read

Using INTERSECT and EXCEPT in MySQL 8.0.31 and Workarounds for Earlier Versions