Hello,
I'm trying to run an update query, to replace all rows with a null date value, with a date from another table.
I get an ora-01427 error when I try to run the query.
I realize that the reason I get this is because there is >1 row being returned - but there are >1 records I need updated.
I'm thinking I need to use 'IN' instead of '=' but not sure how...
I've pasted my code below and attached a .pdf explanation (it's quite confusing).
Thanks in advance!!
Amber
UPDATE SILVICULTURE_ACTIVITY
SET SILA_START_DATE = (SELECT SILVICULTURE_AMENDMENT.SAMM_DIST_APPR_DATE
FROM
SILVICULTURE_ACTIVITY,
SILVICULTURE_COMPANY_ACTIVITY,
SILVICULTURE_AMENDMENT,
SILVICULTURE_PRESCRIPTION,
CUT_BLOCK
WHERE
SILVICULTURE_ACTIVITY.SICA_SEQ_NBR = SILVICULTURE_COMPANY_ACTIVITY.SICA_SEQ_NBR AND
SILVICULTURE_ACTIVITY.CUTB_SEQ_NBR = SILVICULTURE_PRESCRIPTION.CUTB_SEQ_NBR AND
SILVICULTURE_AMENDMENT.SILP_SEQ_NBR = SILVICULTURE_PRESCRIPTION.SILP_SEQ_NBR AND
SILVICULTURE_PRESCRIPTION.CUTB_SEQ_NBR = CUT_BLOCK.CUTB_SEQ_NBR AND
SICA_ACTIVITY_NAME = 'SP' AND
SILVICULTURE_AMENDMENT.SAMM_DIST_APPR_DATE IS NOT NULL)
WHERE
SILA_STATUS = 'P' AND SILA_START_DATE IS NULL AND
/
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