CodePudding user response:
This kind of relationship with the PC configuration is not much, I think if you have a problem network oh. My side has a 2000 + W table, check the maximum, spent 18 seconds, around 10 W table, the maximum value should be a millisecondCodePudding user response:
Indexed, 10 w maximum record check, tens of milliseconds; Millions or tens of millions of query efficiency has certain will be reducedCodePudding user response:
The index, hundreds of millions of data will not slow, 10 w, index needless to say, will soon, don't walk the index, the slowest is the second level,CodePudding user response:
100000 records to check ah, access can deal with it?Check today just come across a three indexes, the 5 seconds faster, afterward went to see, only 9 million data