8
Delete | Apex DML Standalone Statement
Chapter Topics
- What Is DML In Salesforce?
- Insert | APEX DML Standalone Statements
- Update | APEX DML Standalone Statements
- Upsert | APEX DML Standalone Statements
- Delete | Apex DML Standalone Statement
- Undelete | Apex DML Standalone Statement
- Merge | APEX DML Standalone Statements
- APEX DML Statements Best Practices
- Database Class in APEX
- Empty Recycle Bin
- Count Query | Method in Apex Database Class
- Lead Conversion | Method in Apex Database Class
- Transaction Control and Rollback
- Database Class Method Result Object
Delete In Apex
To delete a record, you need to use the Delete statement.
Example
List < Contact > conList = [SELECT Name FROM Contact];
Map < String, ID > mMap = new Map < String, ID > ();
for (Contact c: conList) {
mMap.put(c.Name, c.Id);
}
List < Contact > uniqList = new List < Contact > ();
List < Contact > delList = new List < Contact > ();
Set < String > sSet = mMap.keySet();
Set < ID > uniqSet = new Set < ID > ();
for (String s: sSet) {
uniqSet.add(mMap.get(s));
}
for (Contact c1: conList) {
if (uniqSet.contains(c1.Id)) uniqList.add(c1);
else delList.add(c1);
}
delete delList;Note:
- Use is Deleted=true & ALL ROWS keyword to get the deleted records from the recycle bin using SOQL.
- ALL ROWS keyword cannot be used in the query editor but can be used in the apex class or function while querying record in [].
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