How to evaluate entity comparison (equal) statements in JPQL: Is it through identity comparison, equals() or something else?
I spent a few hours Googling and completed the Hibernate and JPA s
Tag: clause
Hibernate – HQL’With ‘clause in JPQL
From the Hibernate 3.6 documentation:
You may supply extra join conditions using the HQL with keyword. from Cat as cat
left join cat.kittens as kitten
with kitten.bodyWeight> 10.0 Thi
SWIFT – How to use protocol extensions in WHERE clauses
protocol aView: class {}
extension aView where Self: UIView {} Anyone can help me understand This code?
>Comply with aView
and
>Belong to UIView type
protocol aView: class
Ruby-on-rails – use the activity record in the IN clause of the library to create an integer list
I am trying to use ActiveRecord to replicate some SQL functions. My question involves me using the ruby connection method (not to be confused with SQL connection). This is my code:
scope :s
解决MySQL Update：You can’t specify target table for update in FROM clause
You can’t specify target in MySQL The error of table for update in FROM clause means that you cannot select some values in the same table first, and then update this table (in the same statement)
New with Recursive CTE clause with SQLite
SQLite 3.8.3 adds support for CTE. I tried some sample CTEs on this page and they work fine. However, after reading the documentation and trying to adjust some examples, I can’t Create a simple tes
In SQLITE3, how do I make SQL escape in the Like clause?
I want to run LIKE queries in sqlite3 and safely escape user input. Basically, I want to do something like this:
< /p> char* query = “SELECT * FROM table WHERE LOWER(notes) LIKE’%?%'”;
sqlite
How to name an output column in the SQLite VALUES clause?
If I run this query in sqlite3(3.17.0)
select T.* from (values (1 ),(2),(3),(4),(5)) as T; I get the following output, where there is no name of the first column of T.
———-
1
2
Nosql – WHERE clauses on arrays in Azure Documentdb
In such an Azure Documentdb document
{
“id”: “WakefieldFamily”,
“parents”: [
{“familyName”: “Wakefield”, “givenName”: “Robin” },
{“familyName”: “Miller”, “givenName”: “Ben”}
],
“children”:
PostgreSQL – Columns must appear in Group BY clauses or for polymeric functions
I am updating the Qt software to make it compatible with SQLite and PostgreSQL.
I have a C method for calculating the elements of a given table of a given sub-sentence. < /p> In SQLite, the follow