I am using DBVisualizer for the first time. I have made a stored procedure in mysql database. However I am unable to execute it from DBVisualizer.
This is how the procedure looks like. Here // is used as delimiter. I have four columns in the table namely slno int (autoincrement), time timestamp, price int, and prodid varchar.
*DROP PROCEDURE `spTest`//
CREATE DEFINER=`root`#`localhost` PROCEDURE `spTest`()
BEGIN
SELECT * FROM dummy1 where prodid=pr01;
END*
In DBVisualizer, I am executing #call spTest()
Where am I going wrong?
As the definer of the stored procedure is root, your DBVizualizer connection to MySQL must be as the root user in order to execute it.
Related
I'm using Lookup activity to invoke a MYSQL Stored Procedure. The requirement is to insert a record into a table, get the latest primary key and use that in another activity.
Below is the Stored Procedure
CREATE Procedure usp_LogAudit (
p_pipeline_id int,
p_status varchar(20)
)
begin
Insert into PipelineExecutionLog
(
pipeline_id,
execution_start,
execution_end,
status
)
values
(
p_pipeline_id ,
utc_timestamp(),
null,
p_status
);
SELECT LAST_INSERT_ID() AS SCOPE_IDENTITY;
end;
As, I'm using MYSQL, I don't have the facility to directly import the Stored Procedure along with it' parameters. (Note: For MS-SQL, it's straight forward)
As shown below, I'm using the Query option and invoking the MYSQL Stored Procedure using the 'call'.
Below is the Dynamic Expression
#concat('call usp_LogAudit(',variables('PipelineId'),',','''',variables('PipelineStatus'),'''',')')
The Lookup activity is calling the Stored Procedure successfully at database side. However, in ADF, it's throwing an error.
Not sure how to fix this. Any advice is appreciated.
I am learning to write MySQL stored procedures and I have encountered some difficulties. Here I have two stored procedures:
First stored procedure:
CREATE PROCEDURE sp1 (IN `username` TEXT, OUT `user_id` INT)
BEGIN
DECLARE rowcount INT;
SELECT count(`User ID`) INTO rowcount FROM user WHERE `Username`=username;
SET user_id = rowcount;
END|
Second stored procedure:
CREATE PROCEDURE sp2 (IN `doc_id` INT, IN `content` LONGTEXT)
BEGIN
UPDATE doc SET `Content`=content WHERE `Doc ID`=doc_id;
END|
(Delimiter is |.)
Question:
I observe that the result of the first stored procedure is the same as calling SELECT count(`User ID`) FROM user;. However, the second stored procedure does its job and gets the content updated with the new content.
So why does the first stored procedure treat `Username` and username as equal identifiers but the second stored procedure treats `Content` and content as different identifiers? The two identifiers in both cases are the same except the capitalization of the first letter.
I figure it out after reading the official MySQL documentation about the scope of local variables.
It states that:
A local variable should not have the same name as a table column. If an SQL statement, such as a SELECT ... INTO statement, contains a reference to a column and a declared local variable with the same name, MySQL currently interprets the reference as the name of a variable.
I am trying to create a simple stored procedure in phpmyadmin on namecheap.com server. I have created this procedure on my localhost and there was no problem however I'm unable to understand why is it not being created now.
I have tried by using mySQL as well as from Add Routine option.
My table name is users and here is the stored procedure
CREATE PROCEDURE getUsers (myUsername varchar (32))
BEGIN
SELECT * FROM `users` WHERE username = myUsername;
END$$
However I have another table called albums and I've written similar procedure for that table and it is working fine. Please help
Stucks on Loading Screen
You need the DELIMITER and IN for the params:
DELIMITER //
CREATE PROCEDURE getUsers (IN myUsername varchar (32))
BEGIN
SELECT * FROM `users` WHERE username = myUsername;
END //
DELIMITER ;
In our MySql database there are 3 stored procedures Sp1(), Sp2() and Sp3() . There is logic in Sp3() which I want to use in the stored procedures Sp1() and Sp2(), I know that using a temporary table in Sp3() and using that temporary table in Sp1() and Sp2() works.
To save time and memory it is preferred not to create a temporary table.
One extra piece of info is I can return a result set from a stored procedure to my client. But I am unable to make this store procedure (SP3) work like a subquery, where the result set is returned from the Stored procedure Sp3() and can be compared with another table in Sp2() and Sp1() based on a id key.
I want to try something like below, which can be used in stored procedures Sp1() and Sp2():
Assuming Sp3() returns an id field along with other fields:
Select
id
from
EmployeeTable e
where 5000 >
(Select salary from (call Sp3()) where id= e.id);
I am writing a stored procedure in mysql which simply returns the row with ID provided or return all table when no ID is provided.
CREATE DEFINER=`root`#`localhost` PROCEDURE `SLICE_GET`(`slice_id` int)
BEGIN
SELECT *
FROM `thesis_db`.`SLICE_INFO`
WHERE (SLICE_ID = `slice_id` OR `slice_id` IS NULL);
END
I have used the same idea in ms-sql for years yet it doesn't seem to work for mysql since no matter which ID is passed, the procedure returns entire table.
What am I missing here ?
This is a way to write procedures in mysql
DELIMITER $$
CREATE PROCEDURE `name of procedure` (x CHAR(1), D1 DATE, D2 DATE)
BEGIN
SELECT name of columns you want to display
FROM table name
WHERE SLICE_ID= x
OR SLICE_ID IS NULL;
END
$$
Note: Moreover mysql is not case sensitive means all caps or all small will not effect it.
delimiter is used to:
If you use the mysql client program to define a stored program containing semicolon characters, a problem arises.
By default, mysql itself recognizes the semicolon as a statement delimiter, so you must redefine the delimiter temporarily to cause mysql to pass the entire stored program definition to the server.