sql server - How do I get constraints on a SQL table column -


i have column called mealtype (varchar) in table check constraint {"veg", "nonveg", "vegan"}

that'll take care of insertion.

i'd display these options selection, couldn't figure out sql query find out constraints of particular column in table.

from first glance @ system tables in ms sql server, seems i'll need use ms sql's api info. hoping sql query it.

this query should show constraints on table:

select chk.definition sys.check_constraints chk inner join sys.columns col     on chk.parent_object_id = col.object_id inner join sys.tables st     on chk.parent_object_id = st.object_id  st.name = 'tablename' , col.column_id = chk.parent_column_id

can replace select statement this:

select substring(chk.definition,2,3),substring(chk.definition,9,6),substring(chk.definition,20,5)

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