Wie holt man zwei gleiche Felderdaten von DB [HTML5]?
Frage
this.db.transaction(function (tx)
{
tx.executeSql('SELECT tsk.*, cont.firstName, cont.lastName ,cont1.firstName, cont1.lastName, list.listId FROM tbl_tasks tsk, tbl_contacts cont,tbl_contactequests cont1, tbl_lists list WHERE (tsk.assignedId=0 or tsk.assignedId=cont.contactId or tsk.assignedId=cont1.contactRequestId) and tsk.taskCategoryType != "INBOX_NOT_ACCEPTED" and list.listId=tsk.listId and list.listId='+window.defaultlistid+' group by tsk.taskId', [], enyo.bind(this,this.queryResponse), enyo.bind(this,this.errorHandler));//call queryResponse
}.bind(this));
Wie Sie Cont.FirstName (Tabelle tbl_contacts) & cont1.firstname hat (Tabelle tbl_contactequests) hat nun denselben Fields Vornamen
for (var i = 0; i < len; i++)
{
list[i] = results.rows.item(i);
fname = list[i].firstName;
lname = list[i].lastName;
fullname = fname+' '+lname;
//alert(fullname);
if(list[i].assignedId==0)
{list[i].name = '';}
else
{list[i].name=fullname;}
}
Mit dieser Schleife kann ich den ersten Wert von TBL_Contacts Field FirstName featch. Jetzt nehmen Sie an, ob ich nicht auf TBL_Contactequests Tabelle zugreifen kann.
Lösung
Verwenden AS
Schlüsselwort für SQL -Abfrage:
'SELECT tsk.*,
cont.firstName AS cFirstName,
cont.lastName ,
cont1.firstName AS c1FirstName,
cont1.lastName, list.listId
FROM tbl_tasks tsk, tbl_contacts cont,
tbl_contactequests cont1, tbl_lists list
WHERE (tsk.assignedId=0 OR tsk.assignedId=cont.contactId OR
tsk.assignedId=cont1.contactRequestId) AND
tsk.taskCategoryType != "INBOX_NOT_ACCEPTED" AND
list.listId=tsk.listId AND list.listId='+window.defaultlistid+'
GROUP BY tsk.taskId'
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