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SQL

The SQL UPDATE Statement

SQL

The HAVING Clause

HAVING-clause GROUP-BY-clause aggregate-functions

SQL

SELECT ROWNUM example

SQL

COUNT() Function

COUNT-Function aggregate-functions NULL-values

SQL

SQL - ORDER BY Clause

ORDER-BY-clause

SQL

Correlated subquery

sub-queries correlated-subquery synchronized-subquery

SQL

The TRUNCATE TABLE Statement

SQL

CHECK Constraint

constraints CHECK-constraint

SQL

SQL Language elements

insignificant-whitespaces queries statements language-elements clauses expressions predicates

SQL

COALESCE

General-Functions COALESCE IF-ELSEIF-ENDIF

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