I am trying to execute a Stored Procedure which updates a column and retrieves the filename from the same table after updating
StoredProcedure:
CREATE DEFINER=`test`#`%` PROCEDURE `update_count`(
IN in_testID VARCHAR(64),
OUT out_FileName VARCHAR(100),
OUT out_Message VARCHAR(100))
BEGIN
UPDATE files SET count=count+1 WHERE testID=in_testID;
SELECT FileName INTO out_FileName FROM files WHERE testID = in_testID;
SET out_Message = 'File updated uccessfully';
END
JavaCode to execute this StoredProcedure:
Query query = session.createSQLQuery("CALL update_count(:in_testID, #out_FileName, #out_Message)").addEntity(FilesBean.class)
.setParameter("in_testID",body.getTestId());
query.executeUpdate();
Updated the query.executeUpdate() with query.list(). But the line returning a error ResultSet is from UPDATE. No Data
I need to fix this with using the createSQLQuery
The easiest way to do that is return the out parameter as part of the returning parameters (relevant only if you have access to the store procedures).
just add a store procedure like the following one
create procedure myProcedure_only_in_prams (
in in_Id int)
begin
call myProcedure(in_id,#out_Id) ;
select #out_id
END;
after done that it quite simple to use it with Hibernate in the following way
Query query = session.createSQLQuery(
"CALL myProcedure_only_in_parms (:in_Id)")
.setParameter("in_id", 123);
List result = query.list();
The result contains the out parameter, if you want return multiply parameters you can add it by doing select #parm1,#parm2,... ,#parmn
Hope it helped
Related
I'm trying to create a stored procedure in a MySQL database using the contents of a text file:
USE myDatabase;
DROP PROCEDURE IF EXISTS myStoredProcedure;
DELIMITER $$
CREATE PROCEDURE myStoredProcedure
(
_description VARCHAR(50),
_value INT
)
BEGIN
INSERT INTO myTable
(
description,
value
) VALUES (
_description,
_value
);
SELECT
id,
description,
value
FROM myTable
WHERE id = LAST_INSERT_ID();
END;
$$
DELIMITER ;
I execute the SQL using a native query:
Query query = entityManager.createNativeQuery(queryText);
...
query.executeUpdate();
But it gets an error on the DROP PROCEDURE
I commented out the DROP PROCEDURE and then it gets an error on the DELIMITER
Basically, it gets an error on any line after the first semicolon.
It seems as if JPA hibernate is parsing my query and telling me there's a problem with it rather than passing the unadulterated text onto MySQL.
The sql runs in MySQL without error.
I can't find anything in Google about creating a stored procedure with JPA, only calling one.
Does anyone have any insight on what I might be doing wrong? Or if this is even possible.
This can be possible if you mention the following property in the url
spring.datasource.url=jdbc:mysql://localhost:3306/test?allowMultiQueries=true
The allowMultiQueries will instruct the driver to sent delimited queries to the database.
Please note that if you are using native queries be-aware of sql injection attack.
You dont need to put the delimiter(DELIMITER) explicitly.The sql statement
The following query works
SET myDatabase;
DROP PROCEDURE IF EXISTS myStoredProcedure;
CREATE PROCEDURE myStoredProcedure ( _description VARCHAR(50), _value INT )
BEGIN
INSERT INTO
myTable ( description, value )
VALUES ( _description, _value );
SELECT id, description, value
FROM myTable
WHERE id = LAST_INSERT_ID();
END;
I have an update/insert SQL query that I created using a MERGE statement. Using either JdbcTemplate or NamedParameterJdbcTemplate, does Spring provide a method that I can use to update a single record, as opposed to a Batch Update?
Since this query will be used to persist data from a queue via a JMS listener, I'm only dequeuing one record at a time, and don't have need for the overhead of a batch update.
If a batch is the only way to do it through Spring JDBC, that's fine... I just want to make certain I'm not missing something simpler.
You can use a SQL MERGE statment using only a one row query containing your parameters.
For example if you have a table COMPANYcontaing IDas a key and NAMEas an attribute, the MERGE statement would be:
merge into company c
using (select ? id, ? name from dual) d
on (c.id = d.id)
when matched then update
set c.name = d.name
when not matched then insert (c.id, c.name)
values(d.id, d.name)
If your target table contains the parametrised key, the name will be updated, otherwise a new record will be inserted.
With JDBCTemplate you use the update method to call the MERGEstatement, as illustrated below (using Groovy script)
def id = 1
def name = 'NewName'
String mergeStmt = """merge into company c
using (select ? id, ? name from dual) d
on (c.id = d.id)
when matched then update
set c.name = d.name
when not matched then insert (c.id, c.name)
values(d.id, d.name)""";
def updCnt = jdbcTemplate.update(mergeStmt, id, name);
println "merging ${id}, name ${name}, merged rows ${updCnt}"
Just use one of update methods, for example this one: JdbcTemplate#update instead of BatchUpdate.
Update updates a single record, batchUpdate updates multiple records using JDBC batch
I'm trying to use a table-valued parameter for a stored procedure we're calling using Hibernate's Session.createSQLQuery.
I have created a type and stored procedure in SQL:
CREATE TYPE StringListType AS TABLE
(
StringText NVARCHAR(256)
)
CREATE PROCEDURE [dbo].[TestStringListType]
(
#stringList StringListType READONLY
)
AS
SELECT * FROM #stringList
I can use this in SQL with:
BEGIN
Declare #StringListTemp As StringListType
insert INTO #StringListTemp (StringText)
values ('foo'), ('bar'), ('baz')
EXEC TestStringListType #StringListTemp
END
What I would like to do in Java is something like:
String fakeQueryStr = "call TestStringListType :list";
SQLQuery fakeQuery = getSession().createSQLQuery(fakeQueryStr);
ArrayList<String> data = Lists.newArrayList("foo", "bar", "baz");
fakeQuery.setParameter("list", data);
return fakeQuery.list();
Neither setParameter or setParameterList work here of course. How do I map my list of Strings to this type to use as a parameter?
I was unable to find a solution for this problem as written. My work-around was to copy the entirety of the stored procedure into a string in Java. In the above example, that would mean that I replaced:
String fakeQueryStr = "call TestStringListType :list";
with
String fakeQueryStr = "SELECT * FROM :list";
In my actual code, this was undesirable, because the stored procedure was a significantly longer set of statements, but it does still work when wrapped in BEGIN and END within the string.
I have a query which I am trying to test. The query should update the data if it finds data in the table with existing primary key. If it doesn't then insert into the table.
The Primary key is of type int and in the properties I can see Identity is set to "True" which I assume it means that it will automatically set the new id for the primary if it is inserted.
MERGE INTO Test_table t
USING (SELECT 461232 ID,'Test1-data' Fascia FROM Test_table) s
ON (t.ID = s.ID)
WHEN MATCHED THEN
UPDATE SET t.Fascia = s.Fascia
WHEN NOT MATCHED THEN
INSERT (Fascia)
VALUES (s.Fascia);
The issue here is this query doesn't work and it never inserts the data or updates. Also, query gets compiled and I don't get any compilation error
Also the reason I want this query is to work because then I will use Java prepared statement to query the database so I am assuming I can do
SELECT ? ID,? Fascia FROM Test_table
So that I can pass the values with set methods in java.
Please let me know if there is something wrong in my query.
You are selecting from the target table as your source.
You either need to remove your FROM Test_table or have at least 1 row in Test_table prior to your merge.
rextester demo: http://rextester.com/XROJD28508
MERGE INTO Test_table t
USING (SELECT 461232 ID,'Test1-data' Fascia --FROM Test_table
) s
ON (t.ID = s.ID)
WHEN MATCHED THEN
UPDATE SET t.Fascia = s.Fascia
WHEN NOT MATCHED THEN
INSERT (Fascia)
VALUES (s.Fascia);
I want to get previous days data from my database and for that I have added a DATE_ADD function in my hibernate query using MySQL Database but I am getting error while running the query and here the query is:
select columnname
from tablename
where columnname = DATE_ADD(day,-1,getDate())
It is simple to call a function if your function is returning a string or varchar value.
session.createSQLQuery("select my_fn(:param1)")
Where my_fn is the name of your function with parameter param1.