My query is something like this. I try to get a status for a list of ids.
select order_number, order_status_name
from data.order_fact s
join data.order_status_dim l
on s.order_status_key = l.order_status_key
where
order_number in (1512011196169,1512011760019,1512011898493,1512011972111)
I get an error though that says:
ERROR: operator does not exist: character varying = bigint
LINE 6: order_number in (1512011196169,1512011760019,1512011898493,1...
^
HINT: No operator matches the given name and argument type(s). You might need to add explicit type casts.
Do you have any clue on how I should reform the ids to get it work?
Thanks a lot!
Your order_number is a varchar, you can't compare that to a number (123 is a number in SQL, '123' is a string constant)
You need to use string literals:
order_number in ('1512011196169','1512011760019','1512011898493','1512011972111')
More details in the manual:
http://www.postgresql.org/docs/current/static/sql-syntax-lexical.html#SQL-SYNTAX-CONSTANTS
If you can't change the type of numbers within in, you could use cast:
select * from numbers_as_string
where cast(my_numbers_as_string as int) in (1,2,3)
This happen too when you are using native query in sprinboot and you are passing a parameter as string but that field is a (integer or long) in your model/entity, also when you are comparing a string with a integer due that param is used like string without casting.
so you should cast it as integer in the native query like this
x\:\:integer
for example:
#Query(value="
......
.....
inner join tablex t on t.x\\:\\:integer = pv.id \n"+
....
....
")
List<Object> getMyQuery(#Param("x") String x)
Related
I got this error when I try to get the list of all rows on my table. This only happens because I include one of the column in the SELECT. The column itself is an enum column and I wanna use COALESCE for the column in case it meets a null value.
This is a simplication of my code
SELECT id,
user_id,
coalesce(date_unit, '') date_unit
FROM table_name
WHERE user_id = $1
I got this error when I try to run it
SQL Error [22P02]: ERROR: invalid input value for enum table_name.date_unit: ""
This is the error when I run it using SQLX On Golang
Pq: invalid input value for enum table_name.date_unit: \"\"
date_unit itself is an enum which has restricted values. It only accepts day and month as value in the table. But lots of rows have null value in date_unit.
I wanna convert it to "" or empty string if date_unit value is null.
Is there a problem with the COALESCE with enum values? How should I use COALESCE to work with what I wanna do?
The answer is found in the comment section of the question.
To officiate it, as date_unit is not a string type, it cannot be returned when querying (invalid data type). As such, when querying, we should convert date_unit to string type.
This can be done using the query:
SELECT id,
user_id,
COALESCE(date_unit::text, '')
FROM table_name
WHERE user_id = $1
SELECT id,
user_id,
coalesce(date_unit, '')
FROM table_name
WHERE user_id = $1
Operator does not exist: character varying = uuid
Client id is UUId and should be why it is not working.
Where I am wrong, since I have tried almost everything I imagined.
SELECT * FROM "cobranca_assinatura"
INNER JOIN "cadastro_cliente" ON ("cobranca_assinatura"."cliente_id" = "cadastro_cliente"."id")
WHERE "cadastro_cliente"."nome" LIKE marcelo% ESCAPE '\'
[2019-03-21 14:40:34] [42883] ERROR: operator does not exist:
character varying = uuid [2019-03-21 14:40:34]
Dica: No operator
matches the given name and argument type(s). You might need to add
explicit type casts.
uuid is a specific datatype. To you it looks like text, but it's not. You cannot compare uuid using string functions (uuid like "abc%"), or compare it with text.
As Tamer suggests, you can cast it first, if you need to compare.
SELECT *
FROM (SELECT 'A0EEBC99-9C0B-4EF8-BB6D-6BB9BD380A11'::uuid as my_uuid) foo
WHERE my_uuid::text like 'a%'
For example, above I create a uuid by casting a string to uuid type. (You'll fail if you attempt to cast just any old string to uuid because 'abc' cannot be a uuid).
Then with a uuid item called 'my_uuid', I cast to back to a string to use string comparison. (Note the 'A' becomes 'a'!)
In java -> spring boot for JDBC template. I got the same issue. This is type-mismatch error, it's expecting UUID datatype but supplying String.
So, I converted UUID from String using UUID.fromString() and using UUID type in prepared statement (SQL)
Example:
String testSelectQry = "SELECT * from facility_announcements where id=:announcementID";
SqlParameterSource params = new MapSqlParameterSource("announcementID", UUID.fromString("094b76da-4140-11eb-b139-0242ac11000f"));
namedParameterJdbcTemplate.query(testSelectQry, params, new FacilityAnnouncementMapper());
It appears that [t_l_unit] being a varchar is conflicting with the filters in my Where clause. Can I fix this with a Cast of some sort?
Going by the title of your post, your are trying to convert the value "F01" to an INT?
Obviously this is not possible because of the "F" in the string.
What you can do is use the TRY_CAST function which will convert the value to an INT if it can and will return NULL otherwise
SELECT val1, va2, etc
FROM myTable
WHERE TRY_CAST([t_l_unit] as INT) = 12
The query didn't come through, but you should be able to just do:
CAST([t_l_unit] AS INT)
to use it as a number in your where clause.
original query looks like this :
UPDATE reponse_question_finale t1, reponse_question_finale t2 SET
t1.nb_question_repondu = (9-(ISNULL(t1.valeur_question_4)+ISNULL(t1.valeur_question_6)+ISNULL(t1.valeur_question_7)+ISNULL(t1.valeur_question_9))) WHERE t1.APPLICATION = t2.APPLICATION;
I know you cannot update 2 tables in a single query so i tried this :
UPDATE reponse_question_finale t1
SET nb_question_repondu = (9-(COALESCE(t1.valeur_question_4,'')::int+COALESCE(t1.valeur_question_6,'')::int+COALESCE(t1.valeur_question_7)::int+COALESCE(t1.valeur_question_9,'')::int))
WHERE t1.APPLICATION = t1.APPLICATION;
But this query gaves me an error : invalid input syntax for integer: ""
I saw that the Postgres equivalent to MySQL is COALESCE() so i think i'm on the good way here.
I also know you cannot add varchar to varchar so i tried to cast it to integer to do that. I'm not sure if i casted it correctly with parenthesis at the good place and regarding to error maybe i cannot cast to int with coalesce.
Last thing, i can certainly do a co-related sub-select to update my two tables but i'm a little lost at this point.
The output must be an integer matching the number of questions answered to a backup survey.
Any thoughts?
Thanks.
coalesce() returns the first non-null value from the list supplied. So, if the column value is null the expression COALESCE(t1.valeur_question_4,'') returns an empty string and that's why you get the error.
But it seems you want something completely different: you want check if the column is null (or empty) and then subtract a value if it is to count the number of non-null columns.
To return 1 if a value is not null or 0 if it isn't you can use:
(nullif(valeur_question_4, '') is null)::int
nullif returns null if the first value equals the second. The IS NULL condition returns a boolean (something that MySQL doesn't have) and that can be cast to an integer (where false will be cast to 0 and true to 1)
So the whole expression should be:
nb_question_repondu = 9 - (
(nullif(t1.valeur_question_4,'') is null)::int
+ (nullif(t1.valeur_question_6,'') is null)::int
+ (nullif(t1.valeur_question_7,'') is null)::int
+ (nullif(t1.valeur_question_9,'') is null)::int
)
Another option is to unpivot the columns and do a select on them in a sub-select:
update reponse_question_finale
set nb_question_repondu = (select count(*)
from (
values
(valeur_question_4),
(valeur_question_6),
(valeur_question_7),
(valeur_question_9)
) as t(q)
where nullif(trim(q),'') is not null);
Adding more columns to be considered is quite easy then, as you just need to add a single line to the values() clause
I am joining the two tables using the query below:
update campaign_items
set last_modified = evt.event_time
from (
select max(event_time) event_time
,result
from events
where request = '/campaignitem/add'
group by result
) evt
where evt.result = campaign_items.id
where the result column is of character varying type and the id is of integer type
But the data in the result column contains digits(i.e. 12345)
How would I run this query with converting the type of the result(character) into id
(integer)
Well you don't need to because postgresql will do implicit type conversion in this situation. For example, you can try
select ' 12 ' = 12
You will see that it returns true even though there is extra whitespace in the string version. Nevertheless, if you need explicit conversion.
where evt.result::int = campaign_items.id
According to your comment you have values like convRepeatDelay, these obviously cannot be converted to int. What you should then do is convert your int to char!!
where evt.result = campaign_items.id::char
There are several solutions. You can use the cast operator :: to cast a value from a given type into another type:
WHERE evt.result::int = campaign_items.id
You can also use the CAST function, which is more portable:
WHERE CAST(evt.result AS int) = campaign_items.id
Note that to improve performances, you can add an index on the casting operation (note the mandatory double parentheses), but then you have to use GROUP BY result::int instead of GROUP BY result to take advantage of the index:
CREATE INDEX i_events_result ON events_items ((result::int));
By the way the best option is maybe to change the result column type to int if you know that it will only contain integers ;-)