How can we execute Oracle sequence in Postgres?
In between migration from Oracle to Postgres, I need to execute some insert statement for an Oracle table from Postgres (in which the primary key field is using a sequence for uniqueness).
Now at the time of the migration I am converting some procedure that is used to insert a row in a table, but I can't move table directly from oracle to Postgres due to a higher dependency on the table.
That's why I need to execute an Oracle sequence from Postgres.
postgresql oracle-fdw
edited Nov 12 at 6:59
Laurenz Albe
44.1k102746
asked Nov 12 at 5:44
Kailash Dhaker
315
add a comment |
In between migration from Oracle to Postgres, I need to execute some insert statement for an Oracle table from Postgres (in which the primary key field is using a sequence for uniqueness).
Now at the time of the migration I am converting some procedure that is used to insert a row in a table, but I can't move table directly from oracle to Postgres due to a higher dependency on the table.
That's why I need to execute an Oracle sequence from Postgres.
postgresql oracle-fdw
edited Nov 12 at 6:59
Laurenz Albe
44.1k102746
asked Nov 12 at 5:44
Kailash Dhaker
315
Please add some more detail and/or code to your question to make it concrete. Not sure what you are asking here.
– Tim Biegeleisen
Nov 12 at 5:45
add a comment |
In between migration from Oracle to Postgres, I need to execute some insert statement for an Oracle table from Postgres (in which the primary key field is using a sequence for uniqueness).
Now at the time of the migration I am converting some procedure that is used to insert a row in a table, but I can't move table directly from oracle to Postgres due to a higher dependency on the table.
That's why I need to execute an Oracle sequence from Postgres.
postgresql oracle-fdw
edited Nov 12 at 6:59
Laurenz Albe
44.1k102746
asked Nov 12 at 5:44
Kailash Dhaker
315
In between migration from Oracle to Postgres, I need to execute some insert statement for an Oracle table from Postgres (in which the primary key field is using a sequence for uniqueness).
Now at the time of the migration I am converting some procedure that is used to insert a row in a table, but I can't move table directly from oracle to Postgres due to a higher dependency on the table.
That's why I need to execute an Oracle sequence from Postgres.
postgresql oracle-fdw
postgresql oracle-fdw
edited Nov 12 at 6:59
Laurenz Albe
44.1k102746
asked Nov 12 at 5:44
Kailash Dhaker
315
edited Nov 12 at 6:59
Laurenz Albe
44.1k102746
asked Nov 12 at 5:44
Kailash Dhaker
315
edited Nov 12 at 6:59
Laurenz Albe
44.1k102746
edited Nov 12 at 6:59
Laurenz Albe
44.1k102746
edited Nov 12 at 6:59
Laurenz Albe
44.1k102746
44.1k102746
asked Nov 12 at 5:44
Kailash Dhaker
315
asked Nov 12 at 5:44
Kailash Dhaker
315
asked Nov 12 at 5:44
Kailash Dhaker
315
315
Please add some more detail and/or code to your question to make it concrete. Not sure what you are asking here.
– Tim Biegeleisen
Nov 12 at 5:45
add a comment |
Please add some more detail and/or code to your question to make it concrete. Not sure what you are asking here.
– Tim Biegeleisen
Nov 12 at 5:45
Please add some more detail and/or code to your question to make it concrete. Not sure what you are asking here.
– Tim Biegeleisen
Nov 12 at 5:45
Please add some more detail and/or code to your question to make it concrete. Not sure what you are asking here.
– Tim Biegeleisen
Nov 12 at 5:45
add a comment |
1 Answer
1
active
oldest
votes
The simplest solution is probably to create a view in Oracle that doesn't contain the column that is to be filled from the sequence.
Then define a trigger on the table that fills the column from the sequence when NULL and creare a foreign table on the view.
Wheb you INSERT into the foreign table, the column will get filled by the trigger.
answered Nov 12 at 6:54
Laurenz Albe
44.1k102746
You don't really need the view - the trigger could simply ignore any value supplied for that column or check for NULL and only then use the sequence
– a_horse_with_no_name
Nov 12 at 6:57
Sure, that's an option if you never want to explicitly fill the column.
– Laurenz Albe
Nov 12 at 7:01
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
The simplest solution is probably to create a view in Oracle that doesn't contain the column that is to be filled from the sequence.
Then define a trigger on the table that fills the column from the sequence when NULL and creare a foreign table on the view.
Wheb you INSERT into the foreign table, the column will get filled by the trigger.
answered Nov 12 at 6:54
Laurenz Albe
44.1k102746
You don't really need the view - the trigger could simply ignore any value supplied for that column or check for NULL and only then use the sequence
– a_horse_with_no_name
Nov 12 at 6:57
Sure, that's an option if you never want to explicitly fill the column.
– Laurenz Albe
Nov 12 at 7:01
add a comment |
The simplest solution is probably to create a view in Oracle that doesn't contain the column that is to be filled from the sequence.
Then define a trigger on the table that fills the column from the sequence when NULL and creare a foreign table on the view.
Wheb you INSERT into the foreign table, the column will get filled by the trigger.
answered Nov 12 at 6:54
Laurenz Albe
44.1k102746
You don't really need the view - the trigger could simply ignore any value supplied for that column or check for NULL and only then use the sequence
– a_horse_with_no_name
Nov 12 at 6:57
Sure, that's an option if you never want to explicitly fill the column.
– Laurenz Albe
Nov 12 at 7:01
add a comment |
The simplest solution is probably to create a view in Oracle that doesn't contain the column that is to be filled from the sequence.
Then define a trigger on the table that fills the column from the sequence when NULL and creare a foreign table on the view.
Wheb you INSERT into the foreign table, the column will get filled by the trigger.
answered Nov 12 at 6:54
Laurenz Albe
44.1k102746
The simplest solution is probably to create a view in Oracle that doesn't contain the column that is to be filled from the sequence.
Then define a trigger on the table that fills the column from the sequence when NULL and creare a foreign table on the view.
Wheb you INSERT into the foreign table, the column will get filled by the trigger.
answered Nov 12 at 6:54
Laurenz Albe
44.1k102746
answered Nov 12 at 6:54
Laurenz Albe
44.1k102746
answered Nov 12 at 6:54
Laurenz Albe
44.1k102746
answered Nov 12 at 6:54
Laurenz Albe
44.1k102746
44.1k102746
You don't really need the view - the trigger could simply ignore any value supplied for that column or check for NULL and only then use the sequence
– a_horse_with_no_name
Nov 12 at 6:57
Sure, that's an option if you never want to explicitly fill the column.
– Laurenz Albe
Nov 12 at 7:01
add a comment |
You don't really need the view - the trigger could simply ignore any value supplied for that column or check for NULL and only then use the sequence
– a_horse_with_no_name
Nov 12 at 6:57
Sure, that's an option if you never want to explicitly fill the column.
– Laurenz Albe
Nov 12 at 7:01
You don't really need the view - the trigger could simply ignore any value supplied for that column or check for NULL and only then use the sequence
– a_horse_with_no_name
Nov 12 at 6:57
You don't really need the view - the trigger could simply ignore any value supplied for that column or check for NULL and only then use the sequence
– a_horse_with_no_name
Nov 12 at 6:57
Sure, that's an option if you never want to explicitly fill the column.
– Laurenz Albe
Nov 12 at 7:01
Sure, that's an option if you never want to explicitly fill the column.
– Laurenz Albe
Nov 12 at 7:01
add a comment |
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Please add some more detail and/or code to your question to make it concrete. Not sure what you are asking here.
– Tim Biegeleisen
Nov 12 at 5:45