tdbc::mapSqlState(n)

💅 tdbc::mapSqlState(n) — a Tcl Database Connectivity moment

okay so bestie, welcome to tdbc::mapSqlState from the Tcl Database Connectivity fam 🫶 (that's the tdbc package, if you're keeping score). This is the page that explains how a five-char SQL state turns into a whole readable error class name. yes, it's giving translator-girlie energy and we're obsessed 💖

✨ NAME ✨

tdbc::mapSqlState — the glow-up that maps a SQLSTATE into an error class 👑

🌸 SYNOPSIS 🌸

package require tdbc 1.0

tdbc::mapSqlState sqlstate

🦋 DESCRIPTION 🦋

So the tdbc::mapSqlState command takes a string, and that string is expected to be a five-character "SQL state" — literally the thing a SQL database hands you when an error pops off 😭. The command looks at the first two characters of that string (just the first two, bestie, it's very selective 💅) and returns an error class — a human- and machine-readable name. Think FEATURE_NOT_SUPPORTED, DATA_EXCEPTION, or INVALID_CURSOR_STATE. iconic names, no notes ✨

Here's the lore: the TDBC specification requires database drivers to return a description of an error in the error code whenever an error occurs. That description is a string with at least four elements, and it looks exactly like this:

TDBC errorClass sqlstate driverName details...

Not me explaining the whole flow 🫶 — the whole point is that tdbc::mapSqlState gives a TDBC driver a convenient way to generate that errorClass element from the SQL state that came back out of the database. convenient! lowkey genius! 🔥

🎀 SEE ALSO 🎀

• tdbc(n)
• tdbc::tokenize
• tdbc::connection(n)
• tdbc::statement(n)
• tdbc::resultset(n)

go read those too, iykyk 👀

🌈 KEYWORDS 🌈

TDBC, SQL, database, state — the whole vibe check, fr fr 💜

👑 COPYRIGHT 👑

Copyright (c) 2009 by Kevin B. Kenny. — thank you Kevin, we love you for this one 🫶🌸

and that's the page, bestie!! slay 💅✨ this was written for Tcl 8.6 (the version energy is immaculate), and yes — that's the tdbc::mapSqlState(n) moment, wrapped up with a bow 🎀 bye ily mwah 💖🦋