[{"data":1,"prerenderedAt":78},["ShallowReactive",2],{"term-d\u002Fdurability":3,"related-d\u002Fdurability":60},{"id":4,"title":5,"acronym":6,"body":7,"category":40,"description":41,"difficulty":42,"extension":43,"letter":44,"meta":45,"navigation":46,"path":47,"related":48,"seo":54,"sitemap":55,"stem":58,"subcategory":6,"__hash__":59},"terms\u002Fterms\u002Fd\u002Fdurability.md","Durability",null,{"type":8,"value":9,"toc":33},"minimark",[10,15,19,23,26,30],[11,12,14],"h2",{"id":13},"eli5-the-vibe-check","ELI5 — The Vibe Check",[16,17,18],"p",{},"Durability means once the database says 'committed', your data is saved forever — even if the server crashes right after. The database writes to disk before confirming success. It is the 'D' in ACID.",[11,20,22],{"id":21},"real-talk","Real Talk",[16,24,25],{},"Durability guarantees that once a transaction has been committed, it will remain committed even in the event of system failure (power loss, crashes). This is achieved through write-ahead logging (WAL) where changes are written to a persistent log before being applied to data files.",[11,27,29],{"id":28},"when-youll-hear-this","When You'll Hear This",[16,31,32],{},"\"Durability means committed data survives a server crash.\" \u002F \"Durability relies on write-ahead logging.\"",{"title":34,"searchDepth":35,"depth":35,"links":36},"",2,[37,38,39],{"id":13,"depth":35,"text":14},{"id":21,"depth":35,"text":22},{"id":28,"depth":35,"text":29},"database","Durability means once the database says 'committed', your data is saved forever — even if the server crashes right after.","intermediate","md","d",{},true,"\u002Fterms\u002Fd\u002Fdurability",[49,50,51,52,53],"ACID","Atomicity","Consistency","Isolation","Transaction",{"title":5,"description":41},{"changefreq":56,"priority":57},"weekly",0.7,"terms\u002Fd\u002Fdurability","_AZ6WDM85NEsF0tP20Vq5ivJlgVaYyx-35GcqEDGyp4",[61,65,68,71,75],{"title":49,"path":62,"acronym":63,"category":40,"difficulty":42,"description":64},"\u002Fterms\u002Fa\u002Facid","Atomicity, Consistency, Isolation, Durability","ACID is the four guarantees a reliable database makes about transactions. It is the reason you trust a bank's database with your money.",{"title":50,"path":66,"acronym":6,"category":40,"difficulty":42,"description":67},"\u002Fterms\u002Fa\u002Fatomicity","Atomicity means a transaction is all-or-nothing — like an atom that cannot be split.",{"title":51,"path":69,"acronym":6,"category":40,"difficulty":42,"description":70},"\u002Fterms\u002Fc\u002Fconsistency","Consistency in databases means a transaction can only bring the database from one valid state to another valid state.",{"title":52,"path":72,"acronym":6,"category":40,"difficulty":73,"description":74},"\u002Fterms\u002Fi\u002Fisolation","advanced","Isolation means concurrent transactions do not see each other's in-progress changes.",{"title":53,"path":76,"acronym":6,"category":40,"difficulty":42,"description":77},"\u002Fterms\u002Ft\u002Ftransaction","A transaction groups multiple database operations into one all-or-nothing bundle. Either ALL of them succeed, or NONE of them happen.",1776518275636]