sql - Select an ID if count is equal to 1 -
I am trying to write a query, which results in the identification number based on only 3 WHERE values 1 .
Then say I want to find a patient's id
and my section first name
, last name
and < Code> Date of Birth . If there are 2 results of duplicates, then I need to have the outlet zero and return the patient ID.
If (select the count (*) from the patient where last_name = 'James' and First_name = 'jones' and birth_DtTM = '1980-01-01');
Div class = "post-text "Itemprop =" text ">
count (*)> 1 'NULL' and 'Pat_ID1' Finally, from the patient where the last_name = 'James' and first_name =' Jones' and birth_DtTM = '1980-01-01' Group by Pat_ID1 '
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