Should we store sum of values in a column, or store in memory database
I have a bunch of questions and answers and total votes of those questions and answers. My requirement that I always show how many votes for a question or a answer (and user doesn't often click to who votes for question or answer). Base on this requirement, I have two ways to implement:
- store a column name total_vote in
questiontable. - store total vote of a
questionon memory db such as Redis. Because this data doesn't so important (for example, I can show to user 100 votes, although currently has about 105 votes).
I want to know which is advantages and disadvantages from two above method. I which is prefer due to my business requirement.
Thanks :)
database-design
asked Jul 25 '15 at 19:20
hqthqt
14117
bumped to the homepage by Community♦ 21 mins ago
This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.
add a comment |
I have a bunch of questions and answers and total votes of those questions and answers. My requirement that I always show how many votes for a question or a answer (and user doesn't often click to who votes for question or answer). Base on this requirement, I have two ways to implement:
- store a column name total_vote in
questiontable. - store total vote of a
questionon memory db such as Redis. Because this data doesn't so important (for example, I can show to user 100 votes, although currently has about 105 votes).
I want to know which is advantages and disadvantages from two above method. I which is prefer due to my business requirement.
Thanks :)
database-design
asked Jul 25 '15 at 19:20
hqthqt
14117
bumped to the homepage by Community♦ 21 mins ago
This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.
add a comment |
I have a bunch of questions and answers and total votes of those questions and answers. My requirement that I always show how many votes for a question or a answer (and user doesn't often click to who votes for question or answer). Base on this requirement, I have two ways to implement:
- store a column name total_vote in
questiontable. - store total vote of a
questionon memory db such as Redis. Because this data doesn't so important (for example, I can show to user 100 votes, although currently has about 105 votes).
I want to know which is advantages and disadvantages from two above method. I which is prefer due to my business requirement.
Thanks :)
database-design
asked Jul 25 '15 at 19:20
hqthqt
14117
I have a bunch of questions and answers and total votes of those questions and answers. My requirement that I always show how many votes for a question or a answer (and user doesn't often click to who votes for question or answer). Base on this requirement, I have two ways to implement:
- store a column name total_vote in
questiontable. - store total vote of a
questionon memory db such as Redis. Because this data doesn't so important (for example, I can show to user 100 votes, although currently has about 105 votes).
I want to know which is advantages and disadvantages from two above method. I which is prefer due to my business requirement.
Thanks :)
database-design
database-design
asked Jul 25 '15 at 19:20
hqthqt
14117
asked Jul 25 '15 at 19:20
hqthqt
14117
asked Jul 25 '15 at 19:20
hqthqt
14117
asked Jul 25 '15 at 19:20
hqthqt
14117
asked Jul 25 '15 at 19:20
hqthqt
14117
14117
bumped to the homepage by Community♦ 21 mins ago
This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.
bumped to the homepage by Community♦ 21 mins ago
This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.
add a comment |
add a comment |
1 Answer
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Though reads are more common on these votes than writes. From my understanding you always load the vote count together with the question when displaying it. Therefore I would recommend storing them together.
Besides you save money because RAM requirements are lower.
- Christian
answered Jul 25 '15 at 19:33
xuma202xuma202
20914
add a comment |
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1 Answer
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Though reads are more common on these votes than writes. From my understanding you always load the vote count together with the question when displaying it. Therefore I would recommend storing them together.
Besides you save money because RAM requirements are lower.
- Christian
answered Jul 25 '15 at 19:33
xuma202xuma202
20914
add a comment |
Though reads are more common on these votes than writes. From my understanding you always load the vote count together with the question when displaying it. Therefore I would recommend storing them together.
Besides you save money because RAM requirements are lower.
- Christian
answered Jul 25 '15 at 19:33
xuma202xuma202
20914
add a comment |
Though reads are more common on these votes than writes. From my understanding you always load the vote count together with the question when displaying it. Therefore I would recommend storing them together.
Besides you save money because RAM requirements are lower.
- Christian
answered Jul 25 '15 at 19:33
xuma202xuma202
20914
Though reads are more common on these votes than writes. From my understanding you always load the vote count together with the question when displaying it. Therefore I would recommend storing them together.
Besides you save money because RAM requirements are lower.
- Christian
answered Jul 25 '15 at 19:33
xuma202xuma202
20914
answered Jul 25 '15 at 19:33
xuma202xuma202
20914
answered Jul 25 '15 at 19:33
xuma202xuma202
20914
answered Jul 25 '15 at 19:33
xuma202xuma202
20914
20914
add a comment |
add a comment |
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