SSMS / Server Import and Export Wizard - which screen allow me to update the data during export
I am using SQL Server Management Studio 2016 to export data between databases. In particular, this time, i am using the option to "write a query to specify the data to transfer", but as part of this process, i want to modify the data being exported. --- the goal being to satisfy a null -> not null situation. A column in my source table is set to allow nulls, and the destination table column will not allow nulls. I cannot change the destination table/drop/recreate it, so i want to script in a defult value any place the target column is NULL.
Starting from the screen with option to "write a query to specify the data to transfer", I am using a standard SELECT * FROM [source table]
Next, in the "Select Source Tables and Views", i browse to edit mappings, so I can then "edit sql" and modify the code that is generating my destination table.
When i click "Edit SQL", i get the syntax for the table of my select statement. Is this where I would construct an update statement?
The Create Table SQL Statement has the syntax CREATE TABLE [dbo].[Query]([Column 1]nvarchar(50) NOT NULL
I want to add an update statement to accomplish this logic: UPDATE TABLE [dbo].[Query] SET [Column 1] = 'default value' WHERE [Column 1] IS NULL
Is this the right place in the import/export wizard to do this? i would greatly appreciate a suggestion or two.
Thanks,
whalen
sql-server ssms
asked Feb 2 at 4:04
whalonwhalon
1
add a comment |
I am using SQL Server Management Studio 2016 to export data between databases. In particular, this time, i am using the option to "write a query to specify the data to transfer", but as part of this process, i want to modify the data being exported. --- the goal being to satisfy a null -> not null situation. A column in my source table is set to allow nulls, and the destination table column will not allow nulls. I cannot change the destination table/drop/recreate it, so i want to script in a defult value any place the target column is NULL.
Starting from the screen with option to "write a query to specify the data to transfer", I am using a standard SELECT * FROM [source table]
Next, in the "Select Source Tables and Views", i browse to edit mappings, so I can then "edit sql" and modify the code that is generating my destination table.
When i click "Edit SQL", i get the syntax for the table of my select statement. Is this where I would construct an update statement?
The Create Table SQL Statement has the syntax CREATE TABLE [dbo].[Query]([Column 1]nvarchar(50) NOT NULL
I want to add an update statement to accomplish this logic: UPDATE TABLE [dbo].[Query] SET [Column 1] = 'default value' WHERE [Column 1] IS NULL
Is this the right place in the import/export wizard to do this? i would greatly appreciate a suggestion or two.
Thanks,
whalen
sql-server ssms
asked Feb 2 at 4:04
whalonwhalon
1
Don't useSELECT *and specify the columns explicitly. Also, use aCASEstatement for the column that does allowNULLandWHEN col IS NULL THEN <value>. There isISNULL()function too. Make the select statement bring back the expected results for what you need to import without anything further being needed. Get your query in order and get the expected result, then simply run theUPDATEstatements.
– Pimp Juice IT
Feb 2 at 4:53
add a comment |
I am using SQL Server Management Studio 2016 to export data between databases. In particular, this time, i am using the option to "write a query to specify the data to transfer", but as part of this process, i want to modify the data being exported. --- the goal being to satisfy a null -> not null situation. A column in my source table is set to allow nulls, and the destination table column will not allow nulls. I cannot change the destination table/drop/recreate it, so i want to script in a defult value any place the target column is NULL.
Starting from the screen with option to "write a query to specify the data to transfer", I am using a standard SELECT * FROM [source table]
Next, in the "Select Source Tables and Views", i browse to edit mappings, so I can then "edit sql" and modify the code that is generating my destination table.
When i click "Edit SQL", i get the syntax for the table of my select statement. Is this where I would construct an update statement?
The Create Table SQL Statement has the syntax CREATE TABLE [dbo].[Query]([Column 1]nvarchar(50) NOT NULL
I want to add an update statement to accomplish this logic: UPDATE TABLE [dbo].[Query] SET [Column 1] = 'default value' WHERE [Column 1] IS NULL
Is this the right place in the import/export wizard to do this? i would greatly appreciate a suggestion or two.
Thanks,
whalen
sql-server ssms
asked Feb 2 at 4:04
whalonwhalon
1
I am using SQL Server Management Studio 2016 to export data between databases. In particular, this time, i am using the option to "write a query to specify the data to transfer", but as part of this process, i want to modify the data being exported. --- the goal being to satisfy a null -> not null situation. A column in my source table is set to allow nulls, and the destination table column will not allow nulls. I cannot change the destination table/drop/recreate it, so i want to script in a defult value any place the target column is NULL.
Starting from the screen with option to "write a query to specify the data to transfer", I am using a standard SELECT * FROM [source table]
Next, in the "Select Source Tables and Views", i browse to edit mappings, so I can then "edit sql" and modify the code that is generating my destination table.
When i click "Edit SQL", i get the syntax for the table of my select statement. Is this where I would construct an update statement?
The Create Table SQL Statement has the syntax CREATE TABLE [dbo].[Query]([Column 1]nvarchar(50) NOT NULL
I want to add an update statement to accomplish this logic: UPDATE TABLE [dbo].[Query] SET [Column 1] = 'default value' WHERE [Column 1] IS NULL
Is this the right place in the import/export wizard to do this? i would greatly appreciate a suggestion or two.
Thanks,
whalen
sql-server ssms
sql-server ssms
asked Feb 2 at 4:04
whalonwhalon
1
asked Feb 2 at 4:04
whalonwhalon
1
asked Feb 2 at 4:04
whalonwhalon
1
asked Feb 2 at 4:04
whalonwhalon
1
asked Feb 2 at 4:04
whalonwhalon
1
1
Don't useSELECT *and specify the columns explicitly. Also, use aCASEstatement for the column that does allowNULLandWHEN col IS NULL THEN <value>. There isISNULL()function too. Make the select statement bring back the expected results for what you need to import without anything further being needed. Get your query in order and get the expected result, then simply run theUPDATEstatements.
– Pimp Juice IT
Feb 2 at 4:53
add a comment |
Don't useSELECT *and specify the columns explicitly. Also, use aCASEstatement for the column that does allowNULLandWHEN col IS NULL THEN <value>. There isISNULL()function too. Make the select statement bring back the expected results for what you need to import without anything further being needed. Get your query in order and get the expected result, then simply run theUPDATEstatements.
– Pimp Juice IT
Feb 2 at 4:53
Don't use
SELECT * and specify the columns explicitly. Also, use a CASE statement for the column that does allow NULL and WHEN col IS NULL THEN <value>. There is ISNULL() function too. Make the select statement bring back the expected results for what you need to import without anything further being needed. Get your query in order and get the expected result, then simply run the UPDATE statements.– Pimp Juice IT
Feb 2 at 4:53
Don't use
SELECT * and specify the columns explicitly. Also, use a CASE statement for the column that does allow NULL and WHEN col IS NULL THEN <value>. There is ISNULL() function too. Make the select statement bring back the expected results for what you need to import without anything further being needed. Get your query in order and get the expected result, then simply run the UPDATE statements.– Pimp Juice IT
Feb 2 at 4:53
add a comment |
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Don't use
SELECT *and specify the columns explicitly. Also, use aCASEstatement for the column that does allowNULLandWHEN col IS NULL THEN <value>. There isISNULL()function too. Make the select statement bring back the expected results for what you need to import without anything further being needed. Get your query in order and get the expected result, then simply run theUPDATEstatements.– Pimp Juice IT
Feb 2 at 4:53