query: How do I optimize my RAND() function for large tables?
positive_passages.docid: 153847
positive_passages.text: How can i optimize MySQL's ORDER BY RAND() function?
negative_passages.docid: 132680
negative_passages.text: Why do I get the same result with rand() every time I compile and run?
negative_passages.docid: 156237
negative_passages.text: Efficient query to get greatest value per group from big table
negative_passages.docid: 130239
negative_passages.text: Optimise PostgreSQL for fast testing
negative_passages.docid: 26986
negative_passages.text: Quickly reading very large tables as dataframes
negative_passages.docid: 39486
negative_passages.text: rand() generating the same number – even with srand(time(NULL)) in my main!
negative_passages.docid: 128821
negative_passages.text: How to efficiently get 10% of random numbers, then 10% of remaining 90 etc untill all points allocated
negative_passages.docid: 39579
negative_passages.text: Am I creating bias by using the same random seed over and over?
negative_passages.docid: 425
negative_passages.text: Normalize a MySQL table with more than 250 Boolean columns
negative_passages.docid: 69589
negative_passages.text: Testing random variate generation algorithms
negative_passages.docid: 65745
negative_passages.text: SE Data: rand() fixed?
negative_passages.docid: 135135
negative_passages.text: Mysql selecting (n) rows of each occurrance
negative_passages.docid: 91649
negative_passages.text: MySQL: How to retrieve a random row or multiple random rows?
negative_passages.docid: 148430
negative_passages.text: Choosing a random file from a directory (with a large number of files) in Python
negative_passages.docid: 8316
negative_passages.text: Do frequent DML operations on a table with indexes and huge data affect SELECT query performance?
negative_passages.docid: 88678
negative_passages.text: Optimize table layout
negative_passages.docid: 108940
negative_passages.text: rand() returns same values when called within a single function