Updating identity column bill nye carbon dating

10 Mar

Hybrid Columnar Compression can result in higher compression ratios, at a greater CPU cost.Therefore, this form of compression is recommended for data that is not frequently updated.When you first create a temporary table, its table metadata is stored in the data dictionary, but no space is allocated for table data.

To enable a unique or primary key constraint, you must have the privileges necessary to create an index on the table.If a query is compiled in an edition outside the usable range of editions for the virtual column, then the optimizer will not consider using the index.based on whether they are considered valid as of a specified time, before a specified time, or during a specified time period.You can specify at most one valid time dimension when you create a table.You can subsequently add additional valid time dimensions to a table with the .