What is a good compact DA/SA 9mm pistol?

Please bear with me in this answer, as it's not EXACTLY what you're looking for, and I'm going to be offering some suggestions that are a bit far afield.

1) Is there any particular reason you want to stay with a DA/SA handgun? If that's just your personal preference, that's fine, but you're severely limited in options, especially with so many fantastic striker-fired handguns available. Sure, having a decocker is nice in some cases, but if you're considering using the gun as a carry gun, decocking your gun seems a little pointless- you will presumably be carrying in a holster that has good retention, meaning that the trigger guard will be protected and therefore there is no real chance of the gun discharging without you intentionally doing so.

2) That DA/SA action means you'll have a different trigger pull for the first round, and unless you practice by loading one round at a time, the majority of your practice will be with the single action trigger pull that, on the P239, is LESS THAN HALF the pull of the first round. That means that in an emergency, when your body reverts to muscle memory, you're likely to have a hard time placing your first round with accuracy. At least that's my reasoning, though it may be flawed. A striker-fired handgun that has the same trigger pull each time means that your first shot will feel just like the second, third, fourth, etc. and will feel like ALL of your practice. Again, just a thought.

3) When making the step from .380 ACP to 9mm Parabellum, you kinda want a bit more weight on a gun. That helps to tame recoil.

4) If you're not completely convinced that you want a DA/SA and you want a 9mm Parabellum that is comparable in size to the P239, consider the S&W M&P Shield and the Springfield XDs. Both feel excellent in the hand and are very capable. My personal experience with the M&P Shield is that it's one of the most accurate handguns I've ever experienced, with one of the most comfortable recoils... and I've fired full-size 9mms. The Glock 43 may be another option, though it's still relatively new and I didn't care for how it felt when I handled one. Also note that all of the guns I've mentioned here cost a fraction of what the P239 costs, and are all high-quality guns that have proven track records.

Anyway, those are my thoughts. Good luck in your search!

EDIT: Sarah, I assume you mean that the trigger pull is just too much for you? If that's the case, you should probably invest in a hand exerciser of some sort. No insult intended, just a suggestion.

And a good striker-fired handgun like the S&W M&P Shield would be comfortable to shoot. Trust me.

Bersa 9 Ultra Compact. Alloy frame, 13 round mag, 23 0z, fantastic trigger. ~ $400 at Bud's shipped.

Edit: unfortunately that's a double stack, so grip may be too wide.

I would go with the Sig. I finally purchased my first Sig a few months ago and I'm in love. Has such a nice trigger and not a gritty one like almost all striker pistols.

Ruger SR9C .COMPACT model The grip angle is way better than the more common "colt 1911" believe me.. IM 5 ft 4 in tall w small hands .You wil thank me if yu try this gun.. its not DA/SA I have some of them and gong from 5 pound to 10 pound trigger pull during shootng is bad..rr

Please join the NRA..The govt is working every day to take your legal guns away

Star Arms BKM 9mm.

Swedish K. Karl Gustaf. Smith & Wesson M-76

you have to consider a lighter gun will get more kick back so a little more weight may help, but it still must fit the hand well