SpringBoot-Single value to multiple parameter using PostgreSQL - postgresql

Question

PostgreSQL Query
select date,count(*) from table1
where (DATE_PART('day', current_date::timestamp - table1.date::timestamp ))
<(SELECT value from keyvaluepair where priority='Important')
and priority = 'Important' group by date
order by date
I will be calling from api where
http://localhost:8080/get/getDates?priority=Important
I will be passing as ? in both places as shown
select date,count(*) from table1
where (DATE_PART('day', current_date::timestamp - table1.date::timestamp))
<(SELECT value from keyvaluepair where priority=?)
and priority = ? group by date
order by date
I'm getting error like this
No value specified for parameter 2.; nested exception is org.postgresql.util.PSQLException: No value specified for parameter 2.
org.springframework.dao.DataIntegrityViolationException: PreparedStatementCallback;
In java I'm just getting this query data date and count.
public Map<String,Object> getDates(String priority) {
Map<String,Object> map = new Map<String,Object>();
List<Object> count = new ArrayList<Object>();
List<Object> date = new ArrayList<Object>();
try {
jdbcTemplate.query(query, new Object[] { priority }, new RowMapper<Object>() {
#Override
public Object mapRow(ResultSet rs, int rowNum) throws SQLException {
date.add(rs.getString("date"));
count.add(rs.getInt("count"));
return null;
}
});
} catch (DataAccessException e) {
e.printStackTrace();
}
return map;
}
How to give priority once and use it twice in query?

Answer 1

select t1.date,count(*) from table1 t1
where (DATE_PART('day', current_date::timestamp - t1.date::timestamp ))
<(SELECT value from keyvaluepair k where k.priority=t1.priority)
and t1.priority = 'Important' group by t1.date
order by t1.date
This changes in query helped me in resolving error which I had as shown
No value specified for parameter 2.; nested exception is org.postgresql.util.PSQLException: No value specified for parameter 2.
org.springframework.dao.DataIntegrityViolationException: PreparedStatementCallback;
where two column names of table are same and I have to pass value once for all parameters as in link show below
http://localhost:8080/get/getDates?priority=Important
select t1.date,count(*) from table1 t1
where (DATE_PART('day', current_date::timestamp - t1.date::timestamp ))
<(SELECT value from keyvaluepair k where k.priority=t1.priority)
and t1.priority = ? group by t1.date
order by t1.date
here in this link single value that is priority Important is taken to query where it is used for both tables parameter of same column name.