cascade constraint

Command foreign_key_definition
CONSTRAINT sql_name. FOREIGN KEY (column_reference, ... , column_reference) REFERENCES sql_name [(column_reference, ... , column_reference)] [ON DELETE {RESTRICT | CASCADE}
http://www.4d.fr/documentation/4DdocV11/CMU/CMU18453.HTM

DBI::Const::GetInfo::ODBC
... sql_at_drop_column_cascade => 0x00000400, sql_at_drop_column_restrict => 0x00000800, sql_at_add_table_constraint => 0x00001000, sql_at_drop_table_constraint_cascade => 0x00002000, sql_at_drop ...
http://cpan.uwinnipeg.ca/htdocs/DBI/DBI/Const/GetInfo/ODBC.pm.html

www.tn.refer.org
colonne/contrainte_table}...] }]] [MODIFY {colonne} [,{colonne}]] [DROP { PRIMARY KEY /UNIQUE (colonne[,colonne]) / CONSTRAINT nom_contrainte [CASCADE]
http://www.tn.refer.org/hebergement/cours_sql/mod2.html

Le SQL de A à Z - création des schéma - CREATE, DROP, ALTER - Club ...
... nom_colonne { SET DEFAULT valeur_défaut | DROP DEFAULT} | DROP nom_colonne [ CASCADE | RESTRICT ] | ADD définition_contrainte_ligne | DROP CONSTRAINT nom_contrainte [ CASCADE ...
http://sqlpro.developpez.com/cours/sqlaz/ddl/?page=partie2

ACS3 Data Model - Table-WP_HISTORICAL_SORT
Constraint Name Check Condition; SYS_C002088154 "SLIDE_ID" IS NOT NULL: SYS_C002088155 ... SYS_C002088160: SLIDE_ID : WP_SLIDES : SYS_C002088148 : CASCADE: SYS_C002088161: PRESENTATION_ID , ...
http://oraschemadoc.sourceforge.net/example/table-WP_HISTORICAL_SORT.html#cs-SYS_C002088154