GROUP BY WEEK EF Core 2.1
I need to group per week based on the registration date ?
c# .net entity-framework entity-framework-core
edited Nov 14 '18 at 20:25
Ivan Stoev
105k776126
asked Nov 14 '18 at 19:03
Javier FloresJavier Flores
17415
add a comment |
I need to group per week based on the registration date ?
c# .net entity-framework entity-framework-core
edited Nov 14 '18 at 20:25
Ivan Stoev
105k776126
asked Nov 14 '18 at 19:03
Javier FloresJavier Flores
17415
i think you need to research how to do group by in linq, this just looks wrong, what more interesting is i dont even see registration date in your group by. i suggest you download linqpad and get it to work in that. Also to make it clear what you intent is, just supply the SQL which you would like the linq for its to hard trying to work out what you want
– Seabizkit
Nov 14 '18 at 19:10
1
The date is Trsdt which is also in the condition
– Javier Flores
Nov 14 '18 at 19:12
add a comment |
I need to group per week based on the registration date ?
c# .net entity-framework entity-framework-core
edited Nov 14 '18 at 20:25
Ivan Stoev
105k776126
asked Nov 14 '18 at 19:03
Javier FloresJavier Flores
17415
I need to group per week based on the registration date ?
c# .net entity-framework entity-framework-core
c# .net entity-framework entity-framework-core
edited Nov 14 '18 at 20:25
Ivan Stoev
105k776126
asked Nov 14 '18 at 19:03
Javier FloresJavier Flores
17415
edited Nov 14 '18 at 20:25
Ivan Stoev
105k776126
asked Nov 14 '18 at 19:03
Javier FloresJavier Flores
17415
edited Nov 14 '18 at 20:25
Ivan Stoev
105k776126
edited Nov 14 '18 at 20:25
Ivan Stoev
105k776126
edited Nov 14 '18 at 20:25
Ivan Stoev
105k776126
105k776126
asked Nov 14 '18 at 19:03
Javier FloresJavier Flores
17415
asked Nov 14 '18 at 19:03
Javier FloresJavier Flores
17415
asked Nov 14 '18 at 19:03
Javier FloresJavier Flores
17415
17415
i think you need to research how to do group by in linq, this just looks wrong, what more interesting is i dont even see registration date in your group by. i suggest you download linqpad and get it to work in that. Also to make it clear what you intent is, just supply the SQL which you would like the linq for its to hard trying to work out what you want
– Seabizkit
Nov 14 '18 at 19:10
1
The date is Trsdt which is also in the condition
– Javier Flores
Nov 14 '18 at 19:12
add a comment |
i think you need to research how to do group by in linq, this just looks wrong, what more interesting is i dont even see registration date in your group by. i suggest you download linqpad and get it to work in that. Also to make it clear what you intent is, just supply the SQL which you would like the linq for its to hard trying to work out what you want
– Seabizkit
Nov 14 '18 at 19:10
1
The date is Trsdt which is also in the condition
– Javier Flores
Nov 14 '18 at 19:12
i think you need to research how to do group by in linq, this just looks wrong, what more interesting is i dont even see registration date in your group by. i suggest you download linqpad and get it to work in that. Also to make it clear what you intent is, just supply the SQL which you would like the linq for its to hard trying to work out what you want
– Seabizkit
Nov 14 '18 at 19:10
i think you need to research how to do group by in linq, this just looks wrong, what more interesting is i dont even see registration date in your group by. i suggest you download linqpad and get it to work in that. Also to make it clear what you intent is, just supply the SQL which you would like the linq for its to hard trying to work out what you want
– Seabizkit
Nov 14 '18 at 19:10
1
1
The date is Trsdt which is also in the condition
– Javier Flores
Nov 14 '18 at 19:12
The date is Trsdt which is also in the condition
– Javier Flores
Nov 14 '18 at 19:12
add a comment |
2 Answers
2
active
oldest
votes
It's not quite clear what CalendarWeekRule do you have in mind, so assuming you want the simplest (FirstDay), i.e. the formula like
Week = 1 + (DateTime.DayOfYear - 1) / 7
EF Core supports translation of the DayOfWeek to SQL, so you could use something like this (not sure if you need Year):
.GroupBy(g => new { g.Trsdt.Year, Week = 1 + (g.Trsdt.DayOfYear - 1) / 7 })
answered Nov 14 '18 at 20:25
Ivan StoevIvan Stoev
105k776126
add a comment |
using System.Globalization;
.GroupBy(
g => CultureInfo.CurrentCulture.Calendar.GetWeekOfYear( g.Trsdt,
CalendarWeekRule.FirstDay,DayOfWeek.Monday )
)
answered Nov 14 '18 at 21:49
Javier FloresJavier Flores
17415
add a comment |
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2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
It's not quite clear what CalendarWeekRule do you have in mind, so assuming you want the simplest (FirstDay), i.e. the formula like
Week = 1 + (DateTime.DayOfYear - 1) / 7
EF Core supports translation of the DayOfWeek to SQL, so you could use something like this (not sure if you need Year):
.GroupBy(g => new { g.Trsdt.Year, Week = 1 + (g.Trsdt.DayOfYear - 1) / 7 })
answered Nov 14 '18 at 20:25
Ivan StoevIvan Stoev
105k776126
add a comment |
It's not quite clear what CalendarWeekRule do you have in mind, so assuming you want the simplest (FirstDay), i.e. the formula like
Week = 1 + (DateTime.DayOfYear - 1) / 7
EF Core supports translation of the DayOfWeek to SQL, so you could use something like this (not sure if you need Year):
.GroupBy(g => new { g.Trsdt.Year, Week = 1 + (g.Trsdt.DayOfYear - 1) / 7 })
answered Nov 14 '18 at 20:25
Ivan StoevIvan Stoev
105k776126
add a comment |
It's not quite clear what CalendarWeekRule do you have in mind, so assuming you want the simplest (FirstDay), i.e. the formula like
Week = 1 + (DateTime.DayOfYear - 1) / 7
EF Core supports translation of the DayOfWeek to SQL, so you could use something like this (not sure if you need Year):
.GroupBy(g => new { g.Trsdt.Year, Week = 1 + (g.Trsdt.DayOfYear - 1) / 7 })
answered Nov 14 '18 at 20:25
Ivan StoevIvan Stoev
105k776126
It's not quite clear what CalendarWeekRule do you have in mind, so assuming you want the simplest (FirstDay), i.e. the formula like
Week = 1 + (DateTime.DayOfYear - 1) / 7
EF Core supports translation of the DayOfWeek to SQL, so you could use something like this (not sure if you need Year):
.GroupBy(g => new { g.Trsdt.Year, Week = 1 + (g.Trsdt.DayOfYear - 1) / 7 })
answered Nov 14 '18 at 20:25
Ivan StoevIvan Stoev
105k776126
answered Nov 14 '18 at 20:25
Ivan StoevIvan Stoev
105k776126
answered Nov 14 '18 at 20:25
Ivan StoevIvan Stoev
105k776126
answered Nov 14 '18 at 20:25
Ivan StoevIvan Stoev
105k776126
105k776126
add a comment |
add a comment |
using System.Globalization;
.GroupBy(
g => CultureInfo.CurrentCulture.Calendar.GetWeekOfYear( g.Trsdt,
CalendarWeekRule.FirstDay,DayOfWeek.Monday )
)
answered Nov 14 '18 at 21:49
Javier FloresJavier Flores
17415
add a comment |
using System.Globalization;
.GroupBy(
g => CultureInfo.CurrentCulture.Calendar.GetWeekOfYear( g.Trsdt,
CalendarWeekRule.FirstDay,DayOfWeek.Monday )
)
answered Nov 14 '18 at 21:49
Javier FloresJavier Flores
17415
add a comment |
using System.Globalization;
.GroupBy(
g => CultureInfo.CurrentCulture.Calendar.GetWeekOfYear( g.Trsdt,
CalendarWeekRule.FirstDay,DayOfWeek.Monday )
)
answered Nov 14 '18 at 21:49
Javier FloresJavier Flores
17415
using System.Globalization;
.GroupBy(
g => CultureInfo.CurrentCulture.Calendar.GetWeekOfYear( g.Trsdt,
CalendarWeekRule.FirstDay,DayOfWeek.Monday )
)
answered Nov 14 '18 at 21:49
Javier FloresJavier Flores
17415
answered Nov 14 '18 at 21:49
Javier FloresJavier Flores
17415
answered Nov 14 '18 at 21:49
Javier FloresJavier Flores
17415
answered Nov 14 '18 at 21:49
Javier FloresJavier Flores
17415
17415
add a comment |
add a comment |
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i think you need to research how to do group by in linq, this just looks wrong, what more interesting is i dont even see registration date in your group by. i suggest you download linqpad and get it to work in that. Also to make it clear what you intent is, just supply the SQL which you would like the linq for its to hard trying to work out what you want
– Seabizkit
Nov 14 '18 at 19:10
1
The date is Trsdt which is also in the condition
– Javier Flores
Nov 14 '18 at 19:12