I found the stored procedure does not execute only this portion:
SET #sql
= CONCAT('SELECT TraineeID, ', #sql, '
from tbl_submit_coursefee c
where c.BatchID='BID'
group by c.TraineeID');
in where clause '' quotes do not allow and without quotes query return empty but if I put the parameter value in where clause straight then it works. I'm really stack with this.
Here is my prepared statement (working fine):
SET #sql = NULL;
SELECT
GROUP_CONCAT(DISTINCT
CONCAT ('MAX(IF(BillNo = ''', BillNo, ''', CRA, NULL)) AS `Inv.', BillNo, '`')
) INTO #sql
FROM tbl_submit_coursefee
WHERE BatchID="ID-Welding/FMMTTC-01M/R8/01";
SET #sql
= CONCAT('SELECT TraineeID, ', #sql, '
from tbl_submit_coursefee c
where c.BatchID="ID-Welding/FMMTTC-01M/R8/01"
group by c.TraineeID');
PREPARE stmt FROM #sql;
EXECUTE stmt;
DEALLOCATE PREPARE stmt;
when put this statement in a stored procedure (not working):
DELIMITER ##
DROP PROCEDURE GetRetainment ##
CREATE PROCEDURE vtproject.GetRetainment
(IN `BID` VARCHAR(100))
BEGIN
SET #sql = NULL;
SELECT
GROUP_CONCAT(DISTINCT
CONCAT ('MAX(IF(BillNo = '', BillNo, '', CRA, NULL)) AS `Inv.', BillNo, '`')
) INTO #sql
FROM tbl_submit_coursefee
WHERE BatchID=BID;
SET #sql
= CONCAT('SELECT TraineeID, ', #sql, '
from tbl_submit_coursefee c
where c.BatchID='BID'
group by c.TraineeID');
PREPARE stmt FROM #sql;
EXECUTE stmt;
DEALLOCATE PREPARE stmt;
END ##
DELIMITER ;
If I select #sql before prepare stmt FROM #sql then output as below:
SELECT TraineeID, MAX(IF(BillNo = 1, CRA, NULL)) AS `Inv.1`,MAX(IF(BillNo = 2, CRA, NULL)) AS `Inv.2`,MAX(IF(BillNo = 3, CRA, NULL)) AS `Inv.3`,MAX(IF(BillNo = 4, CRA, NULL)) AS `Inv.4`,MAX(IF(BillNo = 5, CRA, NULL)) AS `Inv.5`,MAX(IF(BillNo = 6, CRA, NULL)) AS `Inv.6`,MAX(IF(BillNo = 7, CRA, NULL)) AS `Inv.7` from tbl_submit_coursefee c where c.BatchID=BID group by c.TraineeID
you need to escape the quotes,
like this :
SET #sql
= CONCAT('SELECT TraineeID, ', #sql, '
from tbl_submit_coursefee c
where c.BatchID=''',BID,'''
group by c.TraineeID');
according with doc : http://dev.mysql.com/doc/refman/5.7/en/string-literals.html
I found the solution in another way myself.
BEGIN
SET #sql = NULL;
SET #bid=BID;
SELECT
GROUP_CONCAT(DISTINCT
CONCAT ('MAX(IF(BillNo = ', BillNo, ', CRA, NULL)) AS `Inv.', BillNo, '`')
) INTO #sql
FROM tbl_submit_coursefee
WHERE BatchID=#bid;
SET #sql
= CONCAT('SELECT TraineeID, ', #sql, '
from tbl_submit_coursefee c
where c.BatchID=#bid
group by c.TraineeID');
PREPARE stmt FROM #sql;
EXECUTE stmt;
DEALLOCATE PREPARE stmt;
END
Related
I Have a table Attendances
and then I Make a Report using this Query
SET #sql = NULL;
SELECT
GROUP_CONCAT(DISTINCT
CONCAT(
'MAX(case when `tanggal` = ''',
`tanggal`,
''' then `in_time` end) AS `',
`tanggal`, '`'
) ORDER BY `id_employee` ASC SEPARATOR ',\n'
) INTO #sql
FROM `attendances` ;
SET #sql2 = CONCAT('SELECT id_employee, ', #sql, ' FROM attendances GROUP BY id_employee');
PREPARE stmt FROM #sql2;
EXECUTE stmt;
DEALLOCATE PREPARE stmt;
Output Query :
Question : I Want To Print in_time and out_time after clause then ? Is it Possible ?
SET #sql = NULL;
SELECT
GROUP_CONCAT(DISTINCT
CONCAT(
'MAX(case when `tanggal` = ''', `tanggal`, ''' then CONCAT(in_time,''-'', out_time) end) AS `', `tanggal`, '`'
) ORDER BY `id_employee` ASC SEPARATOR ',\n'
) INTO #sql
FROM `attendances` ;
SET #sql2 = CONCAT('SELECT id_employee, ', #sql, ' FROM attendances GROUP BY id_employee');
PREPARE stmt FROM #sql2;
EXECUTE stmt;
DEALLOCATE PREPARE stmt;
I have created this query to generate report and its working fine but i want to download the result of this query in .CSV file. How to execute this query in laravel ?
Query :
SET #sql = NULL;
SELECT
GROUP_CONCAT(DISTINCT
CONCAT(
'max(case when wm.SubPointId = ''',
wm.SubPointId,
''' then Balance else 0 end) AS ',
REPLACE ( ws.SubPointType, ' ', '' )
)
) INTO #sql
FROM wallet_master wm, wallet_subpoints ws WHERE wm.SubPointId = ws.SubPointId;
SET #sql = CONCAT('SELECT MobileNo, ', #sql, ', sum(Balance) as `TotalBalance`
FROM wallet_master wm
GROUP BY MobileNo');
PREPARE stmt FROM #sql;
EXECUTE stmt;
DEALLOCATE PREPARE stmt;
Hi i've got something like this as part of a more complex query:
PREPARE stmt FROM #sql;
EXECUTE stmt;
DEALLOCATE PREPARE stmt;
Rather than executing the stmt itself i want to create a table from the result of the execute.
Create table A as select * from (Execute stmt)
gives me error
EDIT:
Here's the entire stuff:
Use catdatabase;
SET SESSION group_concat_max_len = 1000000;
SET #sql = NULL;
SELECT
GROUP_CONCAT(DISTINCT
CONCAT('SUM(CASE WHEN columnA = "' ,columnA, '"THEN 1 ELSE 0 end) AS "' ,columnA, '"'))
INTO #sql
FROM
tableB;
SET #sql = CONCAT('SELECT columnB, Count(*) total, ', #sql, '
FROM tableA inner join tableB on tableA.columnC = tableB.columnE where tableA.columnD <> "catpoop"
GROUP BY columnB');
PREPARE stmt FROM #sql;
EXECUTE stmt;
DEALLOCATE PREPARE stmt;
As I can see you want to pivot your data and wants to save into temporary table.
I have updated your query, Please check out this:
Use catdatabase;
SET SESSION group_concat_max_len = 1000000;
SET #sql = NULL;
SELECT
GROUP_CONCAT(DISTINCT
CONCAT('SUM(CASE WHEN columnA = "' ,columnA, '"THEN 1 ELSE 0 end) AS "' ,columnA, '"'))
INTO #sql
FROM
tableB;
SET #sql = CONCAT('Create temporary table temp SELECT columnB, Count(*) total, ', #sql, ' FROM tableA inner join tableB on tableA.columnC = tableB.columnE where tableA.columnD <> "catpoop"
GROUP BY columnB');
PREPARE stmt FROM #sql;
EXECUTE stmt;
DEALLOCATE PREPARE stmt;
If you get any error in this just let me know.
set #table='t2';
SET #table1 = 'test';
set #a = concat('create table ',#table,' select * from ',#table1);
prepare stmt1 from #a;
EXECUTE stmt1;
DEALLOCATE PREPARE stmt1;
https://dev.mysql.com/doc/refman/5.0/en/sql-syntax-prepared-statements.html
updated:
SET SESSION group_concat_max_len = 1000000;
SET #sql = NULL;
SELECT
GROUP_CONCAT(DISTINCT
CONCAT('SUM(CASE WHEN columnA = "' ,columnA, '"THEN 1 ELSE 0 end) AS "' ,columnA, '"'))
INTO #sql
FROM
tableB;
SET #sql = CONCAT('SELECT columnB, Count(*) total, ', #sql, '
FROM tableA inner join tableB on tableA.columnC = tableB.columnE where tableA.columnD <> "catpoop"
GROUP BY columnB');
set #new_sql = concat ('create table A',#sql);
PREPARE stmt FROM #new_sql;
EXECUTE stmt;
DEALLOCATE PREPARE stmt;
Im trying to get a pivot table with dynamic columns to work. When user_id is a string, it works fine but if its an int, then it seems to fail
Here is what I have so far with the assistance of past questions:
CREATE TABLE measure2
(`inspection_date` date, `user_id` int, `score` int, comment text)
;
INSERT INTO measure2
(`inspection_date`, `user_id`, `score`, comment)
VALUES
('2012-10-16', 0, 0, null),
('2012-10-16', 1, 0, null),
('2012-10-16', 2, 0, null),
('2012-10-16', 3, 0, null),
('2012-10-17', 0, 1, null),
('2012-10-17', 1, 1, null),
('2012-10-17', 2, 1, null),
('2012-10-18', 3, 1, null)
;
SET #sql = NULL;
SELECT
GROUP_CONCAT(DISTINCT
CONCAT(
'max(case when user_id = ''',
user_id,
''' then score end) AS ',
user_id
)
) INTO #sql
FROM measure2;
SET #sql = CONCAT('SELECT inspection_date, ', #sql, '
FROM measure2
GROUP BY inspection_date');
PREPARE stmt FROM #sql;
EXECUTE stmt;
DEALLOCATE PREPARE stmt;
see: http://sqlfiddle.com/#!2/eab24/1
Im sure its something simple, but what am I missing?
Thanks
Since the values are in int you are are making them the column names, you have to wrap the values in a backtick
The sql will look like:
max(case when user_id = 1 then score end) as `1`
The full query will be:
SET #sql = NULL;
SELECT
GROUP_CONCAT(DISTINCT
CONCAT(
'max(case when user_id = ''',
user_id,
''' then score end) AS `',
user_id, '`'
)
) INTO #sql
FROM measure2;
SET #sql = CONCAT('SELECT inspection_date, ', #sql, '
FROM measure2
GROUP BY inspection_date');
PREPARE stmt FROM #sql;
EXECUTE stmt;
DEALLOCATE PREPARE stmt;
See SQL Fiddle with Demo
Simple indeed - numbers alone aren't valid column names in SQL, so you need to amend your code to enclose them in backticks:
SET #sql = NULL;
SELECT
GROUP_CONCAT(DISTINCT
CONCAT(
'max(case when user_id = ',
user_id,
' then score end) AS `',
user_id,
'`'
)
) INTO #sql
FROM measure2;
SET #sql = CONCAT('SELECT inspection_date, ', #sql, '
FROM measure2
GROUP BY inspection_date');
PREPARE stmt FROM #sql;
EXECUTE stmt;
DEALLOCATE PREPARE stmt;
I suggest retaining this change for string values as well, in case some of your string values match reserved words or include spaces.
(Also, ' aren't required around numeric values, so I have removed them from the case clauses.)
SQLFiddle here.
I have the following MySQL:
SET #sql = NULL;
SELECT
GROUP_CONCAT(DISTINCT
CONCAT(
'sum(case when perm = ''',
perm,
''' then 1 else 0 end) AS ',
perm
)
) INTO #sql
FROM perms;
SET #sql = CONCAT('SELECT role, ', #sql, '
FROM perms
GROUP BY role');
PREPARE stmt FROM #sql;
EXECUTE stmt;
DEALLOCATE PREPARE stmt;
However, I have to use Sybase 12, does anyone know how to convert this?
Try this:
declare cur_perm cursor for
select perm from perms
go
declare #sql varchar(4000)
declare #perm varchar(4000)
set #sql = ' '
open cur_perm
fetch cur_perm into #perm
while ##sqlstatus=0 begin
select #sql = #sql+'sum(case when perm = '''+#perm+''' then 1 else 0 end) AS '''+#perm+''', '
fetch cur_perm into #perm
end
close cur_perm
deallocate cursor cur_perm
select #sql = 'SELECT '+ #sql+' role
FROM perms
GROUP BY role'
exec(#sql)