M trying to create pagination with stored procedure,
when I try to pass 1 as param it get record 0 to 14.
and when I pass 2 as param it gives 0-30,
I want 15-30 when I pass 2 as param
create PROCEDURE abc(pageno INT)
BEGIN
DECLARE page_no int;
DECLARE rstarts int;
DECLARE rends int;
DECLARE userPage int;
set #userPage = pageno;
PREPARE STMT FROM
" SELECT * FROM primaryinfo LIMIT ?,? ";
SET #START =(#userPage - 1) * 15;
SET #LIMIT = #userPage * 15;
EXECUTE STMT USING #START, #LIMIT;
DEALLOCATE PREPARE STMT;
END
or is there any other solution to do it effectively..
Thank you in advance
pagination without statements:
create PROCEDURE test(
IN first_rec integer,
IN rec_count integer
)
BEGIN
-- return --
SET #rownum=0;
SELECT * FROM (
SELECT
user.*, #rownum:=#rownum+1 AS rn FROM user
) t WHERE rn>=first_rec and rn<first_rec+rec_count;
END;;
Related
I try to set a trigger before I insert a value into table ec3_checking, the trigger's function is set 'account_id' to 'CH-n' if the highest value for id_count is (n-1), id_count is an auto_increment parameter.
delimiter //
CREATE TRIGGER account_id_add BEFORE INSERT ON `ec3_checking`
FOR EACH ROW
BEGIN
DECLARE anum int;
DECLARE bnum int;
SET bnum = max(id_account);
SET anum = bnum + 1;
SET NEW.account_id = concat('CH-', anum);
END//
Then I try to insert some values into the table
insert into `ec3_checking` (balance, overdraft_limit)
VALUES
('300','50');
There is an error:1111, invalid use of group function, could anyone help me?
Thank you very much.
CREATE TRIGGER `account_id_add` BEFORE INSERT ON `ec3_checking`
FOR EACH ROW BEGIN
DECLARE anum int;
SET #bnum = (SELECT max(id_account) FROM ec3_checking);
SET anum = #bnum + 1;
SET NEW.account_name = concat('CH-', anum);
END
Here is the reference link that I used to create procedures: https://dba.stackexchange.com/questions/7147/find-highest-level-of-a-hierarchical-field-with-vs-without-ctes/7161#7161?newreg=88de047579d242c98b8cfe0e17f0330f
Procedures are working well with the example. But not working in my own database. Seems I do something wrong while creating procedures.
Here is the procedure for my db:
DELIMITER $$
DROP FUNCTION IF EXISTS `demo`.`GetParentIDByID` $$
CREATE FUNCTION `demo`.`GetParentIDByID` (GivenID INT) RETURNS INT
DETERMINISTIC
BEGIN
DECLARE rv INT;
SELECT IFNULL(user_by,-1) INTO rv FROM
(SELECT user_by FROM users WHERE id = GivenID) A;
RETURN rv;
END $$
DELIMITER ;
Sql query for the following procedure is working fine. It is basically getting parent_id of the node:
SELECT id,GetParentIDByID(id) FROM users;
Issue occurs when I am try to get Ancestors. Here is the Procedure that I am using:
DELIMITER $$
DROP FUNCTION IF EXISTS `demo`.`GetAncestry` $$
CREATE FUNCTION `demo`.`GetAncestry` (GivenID INT) RETURNS VARCHAR(1024)
DETERMINISTIC
BEGIN
DECLARE rv VARCHAR(1024);
DECLARE cm CHAR(1);
DECLARE ch INT;
SET rv = '';
SET cm = '';
SET ch = GivenID;
WHILE ch > 0 DO
SELECT IFNULL(user_by,-1) INTO ch FROM
(SELECT user_by FROM users WHERE id = ch) A;
IF ch > 0 THEN
SET rv = CONCAT(rv,cm,ch);
SET cm = ',';
END IF;
END WHILE;
RETURN rv;
END $$
DELIMITER ;
SQL query:
SELECT id,GetAncestry(id) FROM users;
Phpmyadmin getting stuck, if I am using this query. It never returns me anything nor an error or success
I have written a stored procedure in mysql which will create a TEMPORARY TABLE, I want to access the data of TEMPORARY TABLE using Codeigniter.But when I call "$this->db->query()" it returns empty data.
$data=array();
$call_procedure = "CALL sp_Stock()";
$query = $this->db->query($call_procedure);
$sql="SELECT * FROM StockTable";
$query1 = $this->db->query($sql);
I have changed my way to show the data. And I do changes it on stored procedure.
DELIMITER $$
CREATE PROCEDURE sp_Stock()
BEGIN
DECLARE cursor_finish INTEGER DEFAULT 0;
DECLARE m_numofpurchaseBag DECIMAL(10,2)DEFAULT 0;
DECLARE m_purchasedKg DECIMAL(10,2)DEFAULT 0;
DECLARE m_purBagDtlId INTEGER DEFAULT 0;
DECLARE stockCursor CURSOR FOR
SELECT purchase_bag_details.`actual_bags`,
(purchase_bag_details.`net`*purchase_bag_details.`actual_bags`) AS PurchasedKg,
purchase_bag_details.`id` AS PurchaseBagDtlId
FROM
purchase_invoice_detail
INNER JOIN
purchase_bag_details
ON purchase_invoice_detail.`id`= purchase_bag_details.`purchasedtlid`
INNER JOIN
`do_to_transporter`
ON purchase_invoice_detail.`id` = do_to_transporter.`purchase_inv_dtlid`
WHERE purchase_invoice_detail.`teagroup_master_id`=6
AND purchase_invoice_detail.`id`=1481
AND do_to_transporter.`in_Stock`='Y';
-- declare NOT FOUND handler
DECLARE CONTINUE HANDLER
FOR NOT FOUND SET cursor_finish = 1;
DROP TEMPORARY TABLE IF EXISTS StockTable;
#temptable creation
CREATE TEMPORARY TABLE IF NOT EXISTS StockTable
(
purchaseBagDtlId INT,
purchasedBag NUMERIC(10,2),
purchasedKg NUMERIC(10,2),
blendedBag NUMERIC(10,2),
blendedKg NUMERIC(10,2),
stockBag NUMERIC(10,2),
stockKg NUMERIC(10,2)
);
#temptable creation
OPEN stockCursor ;
get_stock : LOOP
FETCH stockCursor INTO m_numofpurchaseBag,m_purchasedKg,m_purBagDtlId;
IF cursor_finish = 1 THEN
LEAVE get_stock;
END IF;
/*SELECT m_numofpurchaseBag,m_purchasedKg,m_purBagDtlId; */
/* Blending bag query*/
SET #m_numberofBlndBag:=0;
SET #m_BlndKg:=0;
/* Blend bag*/
SELECT #m_numberofBlndBag:=SUM(blending_details.`number_of_blended_bag`) AS belendedBag INTO #m_numberofBlndBag
FROM blending_details
WHERE blending_details.`purchasebag_id`= m_purBagDtlId
GROUP BY
blending_details.`purchasebag_id`;
#Blend Bag
#Blend Kgs
SELECT #m_BlndKg:=SUM(blending_details.`qty_of_bag` * blending_details.`number_of_blended_bag`) AS blendkg INTO #m_BlndKg
FROM blending_details
WHERE blending_details.`purchasebag_id`= m_purBagDtlId
GROUP BY
blending_details.`purchasebag_id`;
SET #m_StockBag:=(m_numofpurchaseBag - #m_numberofBlndBag);
SET #m_StockKg:=(m_purchasedKg - #m_BlndKg);
INSERT INTO StockTable
(
purchaseBagDtlId ,
purchasedBag ,
purchasedKg ,
blendedBag ,
blendedKg ,
stockBag ,
stockKg
)VALUES(m_purBagDtlId,m_numofpurchaseBag,m_purchasedKg,#m_numberofBlndBag,#m_BlndKg,#m_StockBag,#m_StockKg);
END LOOP get_stock;
CLOSE stockCursor;
SELECT * FROM StockTable;
#DROP TABLE StockTable;
END$$
DELIMITER ;
#CALL sp_Stock();
Anywhere I am using a temp table I am executing this before the temp table is created:
$this->db->query('DROP TABLE IF EXISTS StockTable');
I seem to remember reading someone having the same problem as you and for some reason you have to execute the above first.
So try:
$data=array();
$call_procedure = "CALL sp_Stock()";
$this->db->query('DROP TABLE IF EXISTS StockTable');
$query = $this->db->query($call_procedure);
$sql="SELECT * FROM StockTable";
$query1 = $this->db->query($sql);
I have table name "tmp1" which has fields name id and comma. comma contains 1,3,2,4,5 values with text datatype.
I want separate value in loop in my stored procedure. Like 1 then 3 then 2 etc. So, I was create below given procedure.
BEGIN
DECLARE my_delimiter CHAR(1);
DECLARE split_comma text;
DECLARE done INT;
DECLARE occurance INT;
DECLARE i INT;
DECLARE id INT;
DECLARE sel_query VARCHAR(500);
DECLARE splitter_cur CURSOR FOR SELECT id,comma from tmp1;
DECLARE CONTINUE HANDLER FOR NOT FOUND SET done=1;
OPEN splitter_cur;
splitter_loop:LOOP
FETCH splitter_cur INTO id,split_comma;
SET occurance = LENGTH(split_comma) - LENGTH(REPLACE(split_comma,',',''))+1;
SET my_delimiter=',';
IF done = 1 THEN
LEAVE splitter_loop;
END IF;
IF occurance > 0 THEN
SET i = 1;
WHILE i <= occurance DO
SET sel_query = "SELECT SUBSTRING_INDEX(comma,',',i) as abc from tmp1";
SET #sel_query = sel_query;
PREPARE sel_query FROM #sel_query;
EXECUTE sel_query;
SET i = i + 1;
END WHILE;
END IF;
SET occurance = 0;
END LOOP;
CLOSE splitter_cur;
END;
But when I execute this procedure error occurs "MySQL said: #1054 - Unknown column 'i' in 'field list'"
But here i is a variable used to rotate loop.
Is there any solution? Please help me ... Thank you in advance ...
You have to embed value of variable i in the query, which you did not do.
Change:
SET sel_query = "SELECT SUBSTRING_INDEX(comma,',',i) as abc from tmp1";
SET #sel_query = sel_query;
To:
SET #sel_query = CONCAT( "SELECT SUBSTRING_INDEX(comma,',',", i, ") as abc from tmp1 )";
I am trying to run a procedure in which i will send the table name to fetch all records from it..so that i don't have to create different procedure...but i am facing some problem in that.
ALTER PROCEDURE [dbo].[getTableData]
-- Add the parameters for the stored procedure here
#tableName Varchar(100),
#whrFldName NVarchar(100)
AS
BEGIN
-- SET NOCOUNT ON added to prevent extra result sets from
-- interfering with SELECT statements.
SET NOCOUNT ON;
-- Insert statements for procedure here
DECLARE #ActualTableName AS NVarchar(255)
SELECT #ActualTableName = QUOTENAME( TABLE_NAME )
FROM INFORMATION_SCHEMA.TABLES
WHERE TABLE_NAME = #tableName
DECLARE #sql AS NVARCHAR(MAX)
SELECT #sql = 'SELECT * FROM ' + #ActualTableName + ' WHERE ' +
#whrFldName + ' = ''y'' ;'
--PRINT #sql
EXEC(#SQL)
END
The PHP code is this..
$sql ="EXEC [dbo].[getTableData] 'tbl_services','serviceStatus'";
$rst = odbc_exec($connection, $sql);
$i = 0;
while($result = odbc_fetch_array($rst))
{
$returnPageData[$i] = $result;
$i++;
}
It executes just fine in server but when I call it from my PHP code, it returns null.
Here if I remove * and place fields it works fine..I have tested my code well,it specially creates the problem for a Text type field..
If i change the procedure to this,it works fine..
ALTER PROCEDURE [dbo].[getTableData]
-- Add the parameters for the stored procedure here
#rowsPerPage as bigint,
#pageNum as bigint
AS
BEGIN
-- SET NOCOUNT ON added to prevent extra result sets from
-- interfering with SELECT statements.
SET NOCOUNT ON;
WITH SQLPaging AS (
SELECT TOP(#rowsPerPage * #pageNum) ROW_NUMBER() OVER (ORDER BY creationDate DESC)
AS resultNum, *
FROM [DB_SB].[dbo].[tbl_blog] )
SELECT
blogTitle,
blogSlug,
blogImage,
substring( blogContent, 1, 210 ) AS blogContent,
creationDate,
blogAddedBy
FROM SQLPaging WITH (nolock) WHERE resultNum > ((#pageNum - 1) * #rowsPerPage)
END
But this is no logical..if i send fields everytime..this is not what i want exactly..
Any solution??please help...
You need to use SQL Server Profiler to see what’s actually getting to database engine.
If your stored procedure is executed correctly when run from SSMS then there is a problem somewhere in PHP part.
Are you using the same database using when testing from SSMS? There might be some issue in that…