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/* Delete old default constraints */
DECLARE @sql nvarchar(max)
SET @sql=''
/* IMHO: A DBMS where you have to do THIS to change a default value sucks. */
SELECT @sql= @sql + 'ALTER TABLE site_stats DROP CONSTRAINT ' + df.name + '; '
FROM sys.default_constraints df
JOIN sys.columns c
ON c.object_id = df.parent_object_id
AND c.column_id = df.parent_column_id
WHERE
df.parent_object_id = OBJECT_ID('site_stats');--
EXEC sp_executesql @sql;
/* Change data type of ss_images from int to bigint.
* All other fields (except ss_row_id) already are bigint.
* This MUST happen before adding new constraints. */
ALTER TABLE site_stats ALTER COLUMN ss_images bigint;
/* Add new default constraints.
* Don't ask me why I have to repeat ALTER TABLE site_stats
* instead of using commas, for some reason SQL Server 2016
* didn't accept it in any other way. Maybe I just don't know
* enough about mssql, but this works.
*/
ALTER TABLE site_stats ADD CONSTRAINT col_ss_total_edits DEFAULT NULL FOR ss_total_edits;
ALTER TABLE site_stats ADD CONSTRAINT col_ss_good_article DEFAULT NULL FOR ss_good_articles;
ALTER TABLE site_stats ADD CONSTRAINT col_ss_total_pages DEFAULT NULL FOR ss_total_pages;
ALTER TABLE site_stats ADD CONSTRAINT col_ss_users DEFAULT NULL FOR ss_users;
ALTER TABLE site_stats ADD CONSTRAINT col_ss_active_users DEFAULT NULL FOR ss_active_users;
ALTER TABLE site_stats ADD CONSTRAINT col_ss_images DEFAULT NULL FOR ss_images;
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