<html><head></head><body><div style="color:#000; background-color:#fff; font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px"><div id="yui_3_16_0_ym19_1_1478368337718_29673">Καλησπέρα,<br></div><div class="qtdSeparateBR"><br><br></div><div class="yahoo_quoted" id="yui_3_16_0_ym19_1_1478368337718_29692" style="display: block;"><div style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;" id="yui_3_16_0_ym19_1_1478368337718_29691"><div style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;" id="yui_3_16_0_ym19_1_1478368337718_29690"><div class="y_msg_container" id="yui_3_16_0_ym19_1_1478368337718_29718"><div id="yiv3028243825"><div class="yiv3028243825yqt0971225874" id="yiv3028243825yqtfd94627"><div id="yui_3_16_0_ym19_1_1478368337718_29717"><div style="color:#000;background-color:#fff;font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px;" id="yui_3_16_0_ym19_1_1478368337718_29716"><div class="yiv3028243825qtdSeparateBR" id="yui_3_16_0_ym19_1_1478368337718_29715"><br clear="none"><br clear="none"></div><div class="yiv3028243825yahoo_quoted" id="yiv3028243825yui_3_16_0_ym19_1_1478368337718_16477" style="display:block;"><div id="yiv3028243825yui_3_16_0_ym19_1_1478368337718_16476" style="font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px;"><div id="yiv3028243825yui_3_16_0_ym19_1_1478368337718_16475" style="font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px;"><div class="yiv3028243825y_msg_container" id="yiv3028243825yui_3_16_0_ym19_1_1478368337718_16480"><div id="yiv3028243825"><div id="yiv3028243825yui_3_16_0_ym19_1_1478368337718_16479"><div id="yiv3028243825yui_3_16_0_ym19_1_1478368337718_16478" style="color:#000;background-color:#fff;font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px;"><div dir="ltr" id="yiv3028243825yui_3_16_0_ym19_1_1478368337718_2420">είναι δυνατόν στο μοντέλο ER να έχουμε συσχέτιση συσχετίσεων,</div><div dir="ltr" id="yiv3028243825yui_3_16_0_ym19_1_1478368337718_2420">δηλαδή μία οντότητα να συνδέει μία συσχέτιση με μία άλλη συσχέτιση;</div><div dir="ltr" id="yiv3028243825yui_3_16_0_ym19_1_1478368337718_2420"><br clear="none"></div><div dir="ltr" id="yiv3028243825yui_3_16_0_ym19_1_1478368337718_2420">Ευχαριστώ.</div></div></div></div><br clear="none"><br clear="none"></div> </div> </div> </div></div></div></div></div><br><br></div> </div> </div> </div></div></body></html>