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1. schwertner 480,570
2. sdstuber 451,649
3. angelIII 209,788
4. jinesh_ka... 147,880
5. sujith80 138,589
6. markgeer 103,553
7. sonicefu 97,715
8. rolutola 86,265
9. johnsone 83,437
10. dbmullen 81,830
11. aiklamha 77,653
12. DrSQL 71,797
13. nav_kum_v 59,987
14. sventhan 56,886
15. rbrooker 46,073

1. schwertner 2,598,075
2. markgeer 1,245,146
3. angelIII 1,054,375
4. seazodiac 1,054,253
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7. DrSQL 776,493
8. sujith80 660,785
9. rbrooker 563,649
10. sdstuber 561,990
11. ram_0218 526,239
12. johnsone 489,279
13. andrewst 421,039
14. nav_kum_v 415,485
15. actonwang 391,037

01.29.2006 at 04:18PM PST, ID: 21714790

	[x] Attachment Details

[x]

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7.8

Update statement using inner join

Zone: Oracle Database

Tags: update, join, oracle, inner, statement

I have two tables ALPHA and BETA. I need to update the BETAID to the ALPHAID. The BETAID is currently set to the ALPHADESC so I am joining on this column.

The following update statement works fine in SQL Server:

UPDATE BETA
SET BETAID= A.ALPHAID
FROM TABLE BETA
INNER JOIN ALPHA A
ON BETAID= A.ALPHADESC

So using the lookup table Alpha:-

ALPHAID ALPHADESC
1 First
2 Second
3 Third

This changes the Beta table from:-

BETAID
First
Second
Third

To:-

BETAID
1
2
3

So, the query is simply using a lookup table to replace a description with its corresponding ID, one row at a time. I now need to replicate this query in Oracle. Using the following:-

UPDATE BETA
SET BETAID = (SELECT A.ALPHAID FROM ALPHA A, BETA B
WHERE B.BETAID = A.ALPHADESC);

Results in 'single-row subquery returns more than one row', as expected. How would I rewrite this query for oracle?

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Question Stats

Zone: Database

Question Asked By: servantis

Solution Provided By: jrb1

Participating Experts: 5

Solution Grade: A

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