Init

Career/Resources/Laracast/Eloquent Performance Patterns.md

@@ -0,0 +1,23 @@
+### Getting one recode from a has many relation
+addSelect(['value_name' => Model::whereColumn('a','table.b')->take(1)])
+
+
+
+### Dynamic Relationships Using Subqueries
+The relation column can be added using a addSelect
+
+### Calculate Totals Using Conditional Aggregates
+case exists
+
+### Optimize Circular Relationships
+Manual set relation to the model instead of loading it again
+
+### Getting LIKE to use an Index
+Dont use wildcards on both sides
+
+### Use Unions to Run Queries Independently
+Where in
+	derived table
+		find users by x
+			union 
+		find users by y