I am trying to write an SQL Query that will only order based on the time field of a date-time object in Oracle DB. Here is what I tried:
String getPricesQuery = "SELECT * FROM price WHERE SELECTIONID IN (SELECT ID" +
" FROM selection" +
" WHERE EVENTID =" + eventID + ") ORDER BY TIME(TIMEOFISSUE) ASC";
I read that the TIME() function can be used to extract the time portion of a Date-Time, but I imagine it makes it somewhat more complex, when trying to use it in an ORDER BY clause?
You can use :
ORDER BY to_char(TIMEOFISSUE, 'hh24miss')
ORDER BY TIMEOFISSUE ASC is enough or desc you can use.
Related
I'm trying to import any row from the URL where column 1 contains the string 6293. When I execute this query all I get is the first row from the URL which does not contain the string 6293. BTW if I change the "where 1" clause to "where col1" I get an error. What am I doing wrong?
=query(importrange("URL","Cost Per SKU!a1:q1000"),"select * where 1 = '6293'")
try:
=QUERY(IMPORTRANGE("URL", "Cost Per SKU!A1:Q1000"),
"where Col1 = '6293'")
or:
=QUERY(IMPORTRANGE("URL", "Cost Per SKU!A1:Q1000"),
"where Col1 = 6293")
I would like to retrieve database items based on the current day.
For that purpose I am trying to use the day() function as explained there and mentioned there.
I have a 'created' date field that is automatically filled when a new item is created in the table. It's configured using a model, like that:
#Column(name = "created", nullable = false)
#CreationTimestamp
private Date created;
I created a couple of items and the date is filled in the database as expected.
Now I am trying to call those items using a HQL query:
String hql = "" +
"FROM Item as item " +
"WHERE item.itemId = ?1" +
"AND item.created = day(current_date())";
The problem is that this query is returning a NoResultException.
It's weird because I am using the current_date() function in other scenarios, e.g.:
String hql = "" +
"FROM Item as item " +
"WHERE item.itemId = ?1" +
"AND item.createdAt >= current_date - ?2";
And it is working pretty well!
So I assume the issue is related with day() function.
Try use this:
String hql = "" +
"FROM Item as item " +
"WHERE item.itemId = ?1" +
"AND date(item.created) = current_date()";
I have requirement where I need to get the records based in join of three table with pagination(addition requirement are also there). So I have written a nativeQuery to get the records. Below is the sample query
#Query(value = "SELECT "
+ "a.GROUP_REF_ID as refId "
+ "count(case when c.STAT_CD in :userStatus then (c.grp_user_id) end) as numberOfUsers, "
+ "count(case when b.STAT_CD in :itemStatus then (b.grp_item_id) end) as numberOfItems "
+ "from grp a left join grp_item b on a.grp_id=b.grp_id left join grp_user c on a.grp_id=c.grp_id "
+ "where a.stat_cd in :status and a.co_id in :cids "
+ "group by a.GROUP_REF_ID,a.grp_nam,a.GRP_DESC,a.co_id,a.co_nam,a.CRTE_BY, "
+ "a.CRTE_DT,a.UPDT_BY,a.UPDT_DT ", countQuery = "select count(*) from grp where stat_cd in :status and co_id in :cids ", nativeQuery = true)
public Page<Object> findByStatusAndCompanyIdIn(#Param("status") String status, #Param("cids") List<Long> companyIds,
#Param("userStatus") List<GroupUserStatus> userStatus,
#Param("itemStatus") List<GroupItemStatus> itemStatus, Pageable pageable);
Now the requirement is also that these records are to be sorted on any of the column in select part. So, if user passes numberOfItems, the records are to be sorted on it. But I am facing an issue here because if I pass Sort parameter as numberOfItems, spring prepends an a. before numberOfItems which results in error that not able to find a.numberOfItems.
Is there a way I can stop spring from prepending table alias while creating a query with Sort, or should I write my logic in a different approach
Making my comment an answer so the question can be marked as answered:
Wrap the whole select in another one: select * from (<your current select>) x
I have solved the issue by creating a projection. (Kotlin was used but you’ll get the gist.)
class ShowRepository : JpaRepository<Int, Show> {
#Query("SELECT s AS show, (CASE WHEN (s.status = 'scheduled') THEN s.scheduledStartTime ELSE s.startTime END) AS time FROM Show s")
fun findShows(pageable: Pageable): Page<ShowWithTime>
}
interface ShowWithTime {
val show: Show,
val time: Date?
}
This allows Spring-Data to work its full magic, and using Sort.by(Order.desc("time")) works like a charm.
I’ve written it up with a little bit more detail here: Sorting by a Non-Entity Field.
I am trying to use NamedParameterJdbTemplate in a Spring MVC application. The issue is that the bind parameters do not seem to work (no sorting happens) when I include one of ORDER BY clauses listed below. However, a hard coded order by column name in the sql works.
ORDER BY column1
ORDER BY column1
ORDER BY column1 asc
ORDER BY column1 desc
For example, the below listed query does not work.
private static final String SEARCH_ALL_BY_SORT_ORDER=
" select FIRST_NM, MIDDLE_NM, LAST_NM, CUSTOMER_IDENTIFIER, EMAIL_ADDRESS, ACCOUNT_ID" +
" from VIEW " +
" where CUSTOMER_IDENTIFIER= :customerIdentifier " +
" and ( REGEXP_LIKE(FIRST_NM, :firstName, 'i') " +
" or REGEXP_LIKE(LAST_NM, :lastName, 'i') " +
" or REGEXP_LIKE(EMAIL_ADDRESS, :emailAddress, 'i') )" +
" order by :sortColumns";
The same query with a hard coded order by column works:
private static final String SEARCH_ALL_BY_SORT_ORDER=
" select FIRST_NM, MIDDLE_NM, LAST_NM, CUSTOMER_IDENTIFIER, EMAIL_ADDRESS, ACCOUNT_ID" +
" from VIEW " +
" where CUSTOMER_IDENTIFIER= :customerIdentifier " +
" and ( REGEXP_LIKE(FIRST_NM, :firstName, 'i') " +
" or REGEXP_LIKE(LAST_NM, :lastName, 'i') " +
" or REGEXP_LIKE(EMAIL_ADDRESS, :emailAddress, 'i') )" +
" order by LAST_NM";
Here's the relevant jdbctemplate code
Map <String, Object> params = new HashMap <String, Object>();
params.put("customerIdentifier", customerIdentifier);
params.put("firstName", searchCriteria );
params.put("lastName", searchCriteria );
params.put("emailAddress",searchCriteria);
// sortBy is COLUMN name
// sortOrder is either 'asc' or 'desc'
params.put("sortColumns", sortBy + " " + sortOrder);
// Using just the column name does not work either
//params.put("sortColumns", sortBy);
namedParameterJdbcTemplate.query(SEARCH_ALL_BY_SORT_ORDER, params, new MemberMapper());
Only values can be bound as parameters. Not parts of the query itself.
In the end, a prepared statement is generated and the parameters are bound to the prepared statement. The principle of a prepared statement is to prepare the execution plan of the query (of which the order by clause is a part), and to execute the query one or several times after, with varying parameters.
If the query is not complete, the execution plan can't be prepared and reused. So, for this part of the query, you'll need to generate the query dynamically using string concatenation, and not parameters.
As JB Nizet has already explained that parts of query cannot be used as bind keys (orderby :age). Therefore we will need to use concatenation here instead.
" order by "+ sortBy + " " + sortOrder;
Is it possible to generate arbitrary where condtions SQL query through Jdbc template:
example:
If i pass value for 1 parameter (only name) : search by name
"select * from address where shopname = ?";
If i pass value for 2 parameter (name and city) - search by shopname and city:
"select * from address where shopname = ? and city = ?";
I have mupliple search fields. 7 fields. If user enters any combination. i have search only based on parameter. How to dynamically pass the parameters to the sql. Need snippet/Example how to achieve this.
What you want is some sort of criteria building api, which Hibernate has. Unfortunately, I don't think Spring's JdbcTemplate has any such facility. Others will correct me if I'm wrong...
Though as some guys already suggested that Hibernate is the best way of doing this, but still i think you can try this approach-
String sql = "select * from address where 1 = 1";
if(shopname != null)
sql += "and shopname = :shopname";
if(city!= null)
sql += "and city = :city";
and so on..and use NamedParameterJdbcTemplate
Spring Data and Hibernate have that kind of functionality. Though it might not be worth dragging in such big framework for your app.
You can try to check out SimpleJdbcInsert
http://docs.spring.io/spring/docs/current/spring-framework-reference/html/jdbc.html
Edit:
Alternatively you can try to fix it in SQL with checking on empty, but if you have lots of data to go through, this technique will slow down your request.
"select * from address
where (shopname = ? or shopname = null)
and (city = ? or city = null)";
If Scala is an option to you, the query could be constructed with something like this:
case class Search(shopname:String, city:String = None) {
def sql = "select * from address where shopname = '"+shopname+"'" + city.map(" and city = '"+
_ +"'").getOrElse("")
}
Example usage:
Search("lloh").sql
Search("lloh", Some("Austin")).sql