added client name to billing report

src/sql/0-run-first/billing.sql

@@ -1,23 +1,26 @@
 DROP TABLE IF EXISTS billing_report;
 
 CREATE TABLE billing_report AS
-SELECT pkey,
+SELECT billing.pkey,
        refNumber,
        (SELECT all_projects.proj_type from all_projects where all_projects.refnum = refNumber) AS division,
        line_created,
        accepted_date,
        (qty * default_price)                                                                   AS fee,
        invoice_accepted,
-       (SELECT clients.name FROM clients where clients.pkey = (SELECT contacts.cl_fkey from contacts where pkey =  (SELECT all_projects.contact_fkey where all_projects.refnum = refNumber))) as 'Client'
+       clients.name                                                                            as Client
 FROM billing
+         INNER JOIN all_projects on billing.refNumber = all_projects.refnum
+         INNER JOIN contacts on all_projects.contact_fkey = contacts.pkey
+         INNER JOIN clients on contacts.cl_fkey = clients.pkey
 where invoice_accepted = 1;
 
 CREATE INDEX ref_num ON billing_report (refNumber);
 CREATE INDEX div_idx ON billing_report (division);
 
 
- UPDATE billing_report
- SET division = IF(
+UPDATE billing_report
+SET division = IF(
             division = 'Warranty',
             CONCAT(SUBSTRING(refNumber, 1, 3), ' - ', 'Structural'),
             CONCAT(SUBSTRING(refNumber, 1, 3), ' - ', division)