If you have confirmed a Micro DB crack, you have three options. Note that gluing the cable into the port does not work; it only spreads the fracture further.
If the card is not physically broken, you can attempt to "crack" the corruption using recovery software.
If you are asking about "Micro DB" in the context of application development or hacking, you are likely referring to SQLite. Most mobile apps (Android and iOS) use SQLite databases (often ending in .db, .sqlite, or .sqlite3) to store user data, game scores, or message logs.