Einhaltung referentieller Integrität S 1 2 R 1 2 Originalzustand Änderungsoperationen update R set = ' 1 where = 1 ; delete from R where = 1 ;
{"Image DocumentName": "Einhaltung referentieller Integrit\u00e4t", "Image ImageDescription": "Originalzustand. S. \uf06b \uf0611. \uf0612. R. \uf061 \uf0611. \uf0612. \u00c4nderungsoperationen. update R. set \uf061 = \uf061 1. where \uf061 = \uf0611; delete from R. where \uf061 = \uf0611;", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}