Given a query, I want to return an information row that shows the types of each column returned.
I researched using:
SELECT system_type_name
FROM
sys.dm_exec_describe_first_result_set
('select * from table', NULL, 0) ;
That gives what I want for simple select statements:
But when using this for the select statements I want to run I get the following errors:
What alternatives are there for grabbing columns for results set of a query?
I think you need below two Query's one of them
for Datatype and Length
use yourdatabasename;
SELECT c.name AS 'Column Name',
t.name + '(' + cast(c.max_length as varchar(50)) + ')' As 'DataType',
case
WHEN c.is_nullable = 0 then 'null' else 'not null'
END AS 'Constraint'
FROM sys.columns c
JOIN sys.types t
ON c.user_type_id = t.user_type_id
WHERE c.object_id in ( Object_id('ordertable'), Object_id('Course'))
---here ordertable,Course is two table name
SELECT
c.name 'Column Name',
t.Name 'Data type',
c.max_length 'Max Length',
c.precision ,
c.scale ,
c.is_nullable,
ISNULL(i.is_primary_key, 0) 'Primary Key'
FROM
sys.columns c
INNER JOIN
sys.types t ON c.user_type_id = t.user_type_id
LEFT OUTER JOIN
sys.index_columns ic ON ic.object_id = c.object_id AND ic.column_id = c.column_id
LEFT OUTER JOIN
sys.indexes i ON ic.object_id = i.object_id AND ic.index_id = i.index_id
WHERE
c.object_id = OBJECT_ID('YourTableName')
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