I will fix your sql errors, broken queries and stored procedures
SQL Database Developer
About this Gig
Most small businesses hit the same wall. The spreadsheet that worked for two years stops working: two people edit the same file, the stock column no longer matches the shelf, and nobody can answer a simple question about last quarter. Or there is already a database, and it has started throwing errors nobody can trace.
I handle both, and the reporting that comes after.
Build. I design and build the database that replaces the spreadsheet: normalized schema, constraints so bad data cannot get in, indexes so it stays fast, and stored procedures and triggers that automate what you are currently doing by hand stock deducted on each sale, audit trails, recurring calculations.
Fix. Foreign key and constraint errors, broken triggers and stored procedures, queries returning wrong or duplicated results, failed imports, MySQL-to-MariaDB incompatibilities, slow queries. You get the fix and a plain-language explanation of the cause, so it does not come back.
Report. Messy exports standardised and deduplicated, then turned into an Excel or Power BI report built around the numbers you actually decide on: highest-cost categories, best sellers, slowest-moving stock.
Every order ships with commented

