Introduction
TherunQuery
function allows you to dynamically execute SQL queries based on the results of a previous query. This functionality is particularly useful when you need to dynamically generate column names or perform operations based on values that are not known until runtime.
Syntax
The syntax isrunQuery
+ ('query_file_name_to_run')
. This would return the whole query.
The payment_methods.sql
results are:
id | payment_method |
---|---|
1 | cash |
2 | credit_card |
3 | transfer |
4 | promotion |
purchases_validation
we are going to run the payment_methods
one.
purchases_validation
payment_validation
Example
Consider a scenario where you have apayments
table and you want to generate a table that shows the total amount for each payment method, along with a column for the total amount. The steps would be as follows:
- Identify Different Payment Methods:
- Generate Report Based on Distinct Payment Methods:
runQuery
is called to dynamically generate a second SQL query. This second query aggregates the payment amounts by each different payment method obtained from the first query.
Remember to enclose any latitude logic in curly braces
{ }
.