It is also worth noting that locks have two types – one can either lock the table for writing ( INSERT queries) or for reading ( SELECT queries) if clauses WRITE or READ are specified. Feel free to update as many rows in one go as you want): Such an approach would look like this (replace x with the name of your table and column with the name of your column. Locking – if we lock the table, perform many updates one by one (we can use the LIMIT or WHERE clauses to achieve this goal), and then unlock the table, the speed of the queries will likely be much faster than running a single UPDATE query that updates many rows at once.For more information on how partitioning handles NULL values, refer to the documentation on handling NULL values in partitioning. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |