I have this UPDATE in MonetDB (version 11.41.11):
with t as (select distinct cod_atc_nl_1 , desc_atc_nl_1 from uruguay.staging_rm_dims where desc_atc_nl_1 is not null order by 1)
update uruguay.staging_rm_dims
set
desc_atc_nl_1 = t.desc_atc_nl_1,
desc_atc_nl_2 = t.desc_atc_nl_1,
desc_atc_nl_3 = t.desc_atc_nl_1,
desc_atc_nl_4 = t.desc_atc_nl_1
where
desc_atc_nl_1 is null
and desc_atc_nl_2 is null
and desc_atc_nl_3 is null
and desc_atc_nl_4 is null
and cod_atc_nl_4 is not null
and cod_atc_nl_1 = t.cod_atc_nl_1;
When I executing this sentence, I get the following error:
SQL Error [42S22]: SELECT: no such column 't.cod_atc_nl_1'
Is sintax incorrect?
Thank you.
This was an issue fixed at the version 11.41.1. The with relation must be specified on the from clause.
Related
I am trying to migrate such a simple MySQL query to Oracle SQL using PLSQL
UPDATE submaterial SET `Name` = '{$name}'".($image !== null ? ", `Picture` = '{$image}'" : "")." WHERE SubmaterialID = {$id};
When I migrate to PLSQL I get something like this
UPDATE submaterial SET Name = p_name
CASE WHEN p_image != NULL THEN
Picture = p_image
WHERE SubmaterialID = p_Id;
When I want to execute this I get error
Error(408,6): PL/SQL: ORA-00933: SQL command not properly ended
I try also something like this but also get same error message
UPDATE submaterial SET Name = p_name
CASE WHEN p_image IS NOT NULL THEN
Picture = p_image
WHERE SubmaterialID = p_Id;
Does anyone know where did I made mistake ? How to write this king of query to Oracle SQL ?
That would be
UPDATE submaterial
SET Name = p_name,
picture = CASE WHEN p_image IS NOT NULL THEN p_image END
WHERE SubmaterialID = p_Id;
i.e. you have to take picture = out of case expression.
I can't figure out how to set a field to null on certain condition. It should be an easy query but I'n not able to set the right value for NULL on a nullable field.
Product::where('id', $product_list)->update(['family_id' => null]);
nor
Product::where('id', $product_list)->update(['family_id' => DB::raw(null)]);
did the trick.
Both cases compiled fine but the generated query seems to be wrong because I get a SQL error. In the irst case the error is :
SQLSTATE[HY093]: Invalid parameter number (SQL: update `products` set `family_id` = ?, `products`.`updated_at` = 2019-11-12 08:41:07 where `id` = ?)
and the error for the second one is :
QLSTATE[42000]: Syntax error or access violation: 1064 You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ', `products`.`updated_at` = ? where `id` = ?' at line 1 (SQL: update `products` set `family_id` = , `products`.`updated_at` = 2019-11-12 08:21:50 where `id` = ?)
In the first case it seems that NULL is not being added to the parameters to the prepared query, and in the secon the NULL value is being inserted as nothing in the query. There is any simple way to set the value to NULL?
You should consider the following things first.
1) family_id column is nullable in your table. if not then set nullable.
2) Make sure you have in $fillable property of Product model column family_id.
Make sure $product_list returns id of that particular product.
if $product_list is collection/array of product data then use like:
Product::where('id', $product_list->id)->update(['family_id' => null]);
Try this
Product::where('id', $product_list)->update(['family_id' => 'NULL']);
I got a small problem in my SQL code :
LEFT JOIN
(SELECT *
FROM pilotage_usines_valeurs
WHERE c_indicateur IS NOT NULL) v
ON v.id_usine = d.id_usine
AND v.annee = 2015
AND V.MOIS = D.MOIS
AND V.C_INDICATEUR = pi1.c_indicateur
Sometime pi1.c_indicateur is null. How can i test it and write the line if pi1.c_indicateur is not null don't write it if pi1.c_indicateur is null ?
If I understand your intentions correctly I suggest you add the NOT NULL condition to the ON clause:
LEFT JOIN (SELECT *
FROM PILOTAGE_USINES_VALEURS
WHERE C_INDICATEUR IS NOT NULL) v
ON v.ID_USINE = d.ID_USINE
AND v.ANNEE = 2015
AND v.MOIS = D.MOIS
AND v.C_INDICATEUR = pi1.C_INDICATEUR
AND pi1.C_INDICATEUR IS NOT NULL
NVL is used to substitute null value by something else. Syntax is similar to
NVL (FIELD_TO_BE_TESTED_FOR_NULL, VALUE_IF_NULL);
Option 1:
Replace pi1.c_indicateur when null with some value so that V.C_INDICATEUR will never be equal to that value.
AND V.C_INDICATEUR = NVL(pi1.c_indicateur,'IMPOSSIBLE VALUE FOR V.C_INDICATEUR ');
Option 2:
Replace V.C_INDICATEUR with some value if null and replace pi1.c_indicateur with some other value, so that both will never match if NULL.
AND (V.C_INDICATEUR,'ABC') = NVL(pi1.c_indicateur,'DEF');
I am running a query to retrieve an integer but want to put a check for nulls. If null I want the query to return 0. How can I do that? I tried this below but it's not working
select NVL(A_COUNT, 0) from MYTABLE where VEH_YEAR = '2003';
If A_COUNT is null I want the query to return 0. In the above case I don't have a value 2003 in VEH_YEAR column. The query works if I have a value 2003 in VEH_YEAR column but A_COUNT is null.
Better version of your uery would be, using an Aggregate function like MAX before using NVL.
select NVL(MAX(A_COUNT),0) from MYTABLE where VEH_YEAR = '2003';
SELECT NVL((select A_COUNT from MYTABLE where VEH_YEAR = '2003'), 0) A_COUNT from dual;
This worked.
I have two tables T_SUBJECTS (subject_id, date_of_birth) and T_ADMISSIONS (visit_id, subject_id, date_of_admission, age). I want to update the age column with the age at time of admission. I wrote the update query and get the "single row sub-query returns more than one row". I understand the error but thought the where exists clause will solve the problem. Below is the query.
UPDATE
t_admissions
SET
t_admissions.age =
(
SELECT
TRUNC(months_between(t_admissions.date_of_admission,
t_subjects.date_of_birth)/12)
FROM
t_admissions,
t_subjects
WHERE
t_admissions.subject_id = t_subjects.subject_id
AND t_admissions.age = 0
AND t_admissions.date_of_admission IS NOT NULL
AND t_subjects.date_of_birth IS NOT NULL
)
WHERE
EXISTS
(
SELECT
1
FROM
t_admissions, t_subjects
WHERE
t_admissions.subject_id = t_subjects.subject_id
);
The problem is that your subquery in the SET clause returns multiple rows.
Having a WHERE clause will only filter which records get updated and nothing else.
In addition, your where clause will either always return true or always return false.
You should look into how to properly do a correlated update:
https://stackoverflow.com/a/7031405/477563
A correlated update is what I need as suggested in the above link. See answer below.
UPDATE
(
SELECT
t_admissions.visit_id,
t_admissions.date_of_admission doa,
t_admissions.age age,
t_subjects.date_of_birth dob
FROM
t_admissions,
t_subjects
WHERE
t_admissions.subject_id = t_subjects.subject_id
AND t_admissions.age = 0
AND t_admissions.date_of_admission IS NOT NULL
AND t_subjects.date_of_birth IS NOT NULL
)
SET
age = TRUNC(months_between(doa,dob)/12);