How to JOIN with missing rows? Announcing the arrival of Valued Associate #679: Cesar Manara ...
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How to JOIN with missing rows?
Announcing the arrival of Valued Associate #679: Cesar Manara
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I need to JOIN two tables to correct the price with exchange rates as
SELECT date, price/rate AS adjusted FROM
table1 a JOIN table2 b ON a.date=b.date
The problem is that table2 does not have the exchange rate for all dates.
How can I get a nearest exchange rate for missing dates in table2?
EXAMPLE
Table 1
date price
2019-01-01 2.3
2019-01-03 3.4
2019-01-04 2.6
2019-01-05 2.2
2019-01-06 2.5
2019-01-07 5.1
2019-01-08 4.6
2019-01-09 4.2
2019-01-10 3.3
Table 2
date rate
2019-01-04 1.1
2019-01-06 1.3
2019-01-09 1.0
Alternatively, an approach to fill the missing dates in table2 works too.
mysql join query
asked 56 secs ago
GooglebotGooglebot
1,570174368
add a comment |
I need to JOIN two tables to correct the price with exchange rates as
SELECT date, price/rate AS adjusted FROM
table1 a JOIN table2 b ON a.date=b.date
The problem is that table2 does not have the exchange rate for all dates.
How can I get a nearest exchange rate for missing dates in table2?
EXAMPLE
Table 1
date price
2019-01-01 2.3
2019-01-03 3.4
2019-01-04 2.6
2019-01-05 2.2
2019-01-06 2.5
2019-01-07 5.1
2019-01-08 4.6
2019-01-09 4.2
2019-01-10 3.3
Table 2
date rate
2019-01-04 1.1
2019-01-06 1.3
2019-01-09 1.0
Alternatively, an approach to fill the missing dates in table2 works too.
mysql join query
asked 56 secs ago
GooglebotGooglebot
1,570174368
add a comment |
I need to JOIN two tables to correct the price with exchange rates as
SELECT date, price/rate AS adjusted FROM
table1 a JOIN table2 b ON a.date=b.date
The problem is that table2 does not have the exchange rate for all dates.
How can I get a nearest exchange rate for missing dates in table2?
EXAMPLE
Table 1
date price
2019-01-01 2.3
2019-01-03 3.4
2019-01-04 2.6
2019-01-05 2.2
2019-01-06 2.5
2019-01-07 5.1
2019-01-08 4.6
2019-01-09 4.2
2019-01-10 3.3
Table 2
date rate
2019-01-04 1.1
2019-01-06 1.3
2019-01-09 1.0
Alternatively, an approach to fill the missing dates in table2 works too.
mysql join query
asked 56 secs ago
GooglebotGooglebot
1,570174368
I need to JOIN two tables to correct the price with exchange rates as
SELECT date, price/rate AS adjusted FROM
table1 a JOIN table2 b ON a.date=b.date
The problem is that table2 does not have the exchange rate for all dates.
How can I get a nearest exchange rate for missing dates in table2?
EXAMPLE
Table 1
date price
2019-01-01 2.3
2019-01-03 3.4
2019-01-04 2.6
2019-01-05 2.2
2019-01-06 2.5
2019-01-07 5.1
2019-01-08 4.6
2019-01-09 4.2
2019-01-10 3.3
Table 2
date rate
2019-01-04 1.1
2019-01-06 1.3
2019-01-09 1.0
Alternatively, an approach to fill the missing dates in table2 works too.
mysql join query
mysql join query
asked 56 secs ago
GooglebotGooglebot
1,570174368
asked 56 secs ago
GooglebotGooglebot
1,570174368
asked 56 secs ago
GooglebotGooglebot
1,570174368
asked 56 secs ago
GooglebotGooglebot
1,570174368
asked 56 secs ago
GooglebotGooglebot
1,570174368
1,570174368
add a comment |
add a comment |
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