WebMar 3, 2024 · Right-click the column for which you want to specify a computed column formula and select Delete. Select OK. Add a new column and specify the computed column formula by following the previous procedure to add a new computed column. Use Transact-SQL To add a computed column when creating a table WebOct 19, 2024 · Computed column cannot be persisted because the column is non-deterministic Ask Question Asked 4 years, 5 months ago Modified 4 years, 5 months ago Viewed 16k times 14 I know this is not the first time this type of question has been asked. But why in the following scenario is the persisted computed column being created "non …
sql - Change an Existing Column to Computed and Persisted …
WebApr 4, 2024 · That is not permitted if you have one of many dependencies (e.g. TVFs returning string columns, computed column returning string types, etc). For user databases where it is permitted, it only changes the system tables (e.g. sys.objects, sys.schemas, etc); it does not change any user tables (columns or indexes) Share … WebMay 5, 2024 · 1) Add new column 2) Update old column value to new one 3) Remove old column Make sure new column should not be computed - Create a new Column (unpersisted): ALTER TABLE TABLE_NAME ADD COL_1 DATATYPE UPDATE TABLE_NAME SET COL_1 = COL1 -- Delete the persisted column ALTER TABLE … how do i cite when paraphrasing
Modifying a function used as a column default in SQL Server
WebOct 18, 2016 · Unfortunately, in order to change a computed column, you must DROP and re-CREATE the column. Actual Table Column order is inconsequential. All Best Practice documents highly encourage, and experienced DBAs will always list the columns wanted, in the presentation order desired, in the Query. WebJul 17, 2016 · ALTER TABLE T1 ALTER COLUMN Bar CHAR (100) NULL Cannot alter column 'Bar' because it is 'COMPUTED'. If keeping the table online is the main priority … WebJul 18, 2016 · ALTER TABLE T1 ALTER COLUMN Bar CHAR (100) NULL Cannot alter column 'Bar' because it is 'COMPUTED'. If keeping the table online is the main priority then you might want to consider. Adding two nullable columns that will eventually replace the computed columns (metadata only change). how do i claim a refund from nib