Inner joining to a select statement where the inner select statement's where clause references the outer select?
Tag : sql , By : user187301
Date : March 29 2020, 07:55 AM
it fixes the issue This is a slimmed down query of my greater problem, but the gist is that I'm trying to inner join to a select where the select is limited by the outer select. Is that possible? I'm getting an error about multipart identifier S.Item and S.SerialNum on the inner select. , Looks like you have your JOIN reference in the wrong place. SELECT S.Item, S.SerialNum, S.ReceiveDate
FROM SALES S
INNER JOIN
(
SELECT W.Item, W.SerialNum, MIN(W.SalesDate) MinSalesDate
FROM WARRANTY W
GROUP BY Item, SerialNum
) WW
ON S.Item = WW.Item
AND S.SerialNum = WW.SerialNum
SELECT S.Item, S.SerialNum, S.ReceiveDate, WW.MinSalesDate
FROM SALES S
INNER JOIN
(
SELECT W.Item, W.SerialNum, MIN(W.SalesDate) MinSalesDate
FROM WARRANTY W
WHERE yourFilter here
GROUP BY Item, SerialNum
) WW
ON S.Item = WW.Item
AND S.SerialNum = WW.SerialNum
|
How to select all data but the last week in RMySQL with timestamp?
Tag : mysql , By : user179445
Date : March 29 2020, 07:55 AM
I hope this helps . The name of the table has to come before the data frame you want to write to that table. In the else part of your code, you seem to have the order correct, but in the if part you have BFWeek before tbl.name where it should go after. > showMethods("dbWriteTable")
Function: dbWriteTable (package DBI)
conn="MySQLConnection", name="character", value="character"
conn="MySQLConnection", name="character", value="data.frame"
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RMySQL Syntax Error on "DROP INDEX" statement
Tag : mysql , By : cashshadow
Date : March 29 2020, 07:55 AM
it should still fix some issue Execute the query in 2 parts. first part create table and second part drop the index. for ex- query <- "CREATE TEMPORARY TABLE temporary_table LIKE test.helloworld;"
rs <- dbSendQuery(con, query) #Where the error occurs
query <- "DROP INDEX `PRIMARY` ON temporary_table;"
rs <- dbSendQuery(con, query) #Where the error occurs
<?php
$mysqli = new mysqli("localhost", "root", "root", "test");
$result = $mysqli->query("CREATE TEMPORARY TABLE `temporary_table` LIKE t;");
printf("Errormessage: %s\n", $mysqli->error);
$result = $mysqli->query(" DROP INDEX `PRIMARY` ON temporary_table;");
#$result = $mysqli->query("DROP table temporary_table;");
printf("Errormessage: %s\n", $mysqli->error);
?>
root@smart:/var/www# php test.php
Errormessage:
Errormessage:
<?php
// mysqli
$mysqli = new mysqli("localhost", "root", "root", "test");
$result = $mysqli->query("CREATE TEMPORARY TABLE `temporary_table` LIKE t;DROP INDEX `PRIMARY` ON temporary_table;");
printf("Errormessage: %s\n", $mysqli->error);
?>
root@smart:/var/www# php test.php
Errormessage: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'DROP INDEX `PRIMARY` ON temporary_table' at line 1
|
SQL: nested select statement - child select reading var from main select statement
Tag : sql , By : Chris Woods
Date : March 29 2020, 07:55 AM
Hope that helps after playing around with the statement, that was the final result that worked for me:- IF OBJECT_ID('tempdb..#temptbl', 'U') IS NOT NULL
/*Then it exists*/
DROP TABLE #temptbl
declare @totalreq int
select distinct p1.ProductName, p1.TotalQuantity, o1.OrderEventDate, (select SUM(od2.OrderDetailReqQuant)
from OrderDetailTbl as od2
inner join OrderTbl as o2
on od2.OrderId = o2.OrderId
where o2.OrderEventDate = o1.OrderEventDate and od2.ProductId =
(select p3.ProductId from ProductTbl as p3 where p3.ProductName = p1.ProductName)) as TotalRequiredQuantity
into #temptbl
from ProductTbl as p1
inner join OrderDetailTbl as od1
on p1.ProductID = od1.ProductId
inner join OrderTbl as o1
on o1.OrderId = od1.OrderId
select * from #temptbl
ProductName |TotalQuantity|OrderEventDate|TotalRequiredQuantity
__________________________________________________________________________
8' Tabel | 50 | 2019-01-18 |14
Banquet Chairs |400 | 2019-01-17 |2
Banquet Chairs |400 | 2019-01-18 |12
White Chairs |220 | 2019-01-18 |5
|
How to select MySQL version when installing RMySQL in linux
Tag : mysql , By : semicolonth
Date : March 29 2020, 07:55 AM
Any of those help I found the solution by myself. The SSL certificates were not applied in the dbConnect() call. They need to be defined in a mysql.cnf file which is passed to dbConnect() in the default.file parameter: dbHandle <- dbConnect(
MySQL(),
dbname = dbConfig$databaseName,
host = dbConfig$host,
port = as.integer(dbConfig$port),
user = dbConfig$user,
password = dbConfig$password,
default.file = dbConfig$configFile
)
host=domain.subdomain.de
port=3306
user=john.doe
password=mypassword
databaseName=my_db
configFile=/staging/config/mysql.cnf
[mysqld]
ssl-ca=/staging/mysql-ssl/ca.pem
ssl-cert=/staging/mysql-ssl/client-cert.pem
ssl-key=/staging/mysql-ssl/client-key.pem
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