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Jul
10
answered How to estimate/predict data size and index size of a table in MySQL
Jul
9
comment Indexes and Optimizations for Logging System
@ypercube: Right, corrected my answer. Thanks.
Jul
9
revised Indexes and Optimizations for Logging System
MySQL writes to the sort buffer.
Jul
9
comment Storing complex userdata
A to-do application doesn't require a user-defined database. It just requires user-supplied data.
Jul
9
answered Indexes and Optimizations for Logging System
Jul
8
comment Indexes and Optimizations for Logging System
Will you need to sort?
Jul
8
comment Storing complex userdata
I won't speak for other professional developers, but I try to avoid that kind of use case. Letting end users essentially design their own databases has always caused immense pain and suffering.
Jul
8
awarded  postgresql
Jul
2
comment what is the best practice when making changes to the the application and database?
@user24250: Updated answer.
Jul
2
revised what is the best practice when making changes to the the application and database?
TSQL is software development.
Jun
29
answered what is the best practice when making changes to the the application and database?
Jun
27
revised MySQL system date change impact
Link to docs
Jun
27
answered MySQL system date change impact
Jun
27
comment How to calculate total ON hours and Total OFF hours in day of a motor using PHP and MySQL
@user2100659: Updated answer.
Jun
27
revised How to calculate total ON hours and Total OFF hours in day of a motor using PHP and MySQL
Sum minutes to calc elapsed hours.
Jun
27
revised How to calculate total ON hours and Total OFF hours in day of a motor using PHP and MySQL
Added output.
Jun
27
answered How to calculate total ON hours and Total OFF hours in day of a motor using PHP and MySQL
Jun
20
revised Good explanation of cascade (ON DELETE/UPDATE) behavior
Added interpretation.
Jun
20
answered Good explanation of cascade (ON DELETE/UPDATE) behavior
Jun
19
comment Is it ok to let users add new columns and tables to your database?
Yes, but it would need more than one table. The OP seems to be saying that the database his code creates is a single table. (But I might have misunderstood him.)