We have a table which has 10,00,00,000 records, we need to add a 2 columns to it, we tried in DEV database it took 3 hours to add one column. As it will impact the business, we cann't take a chance to down the
The Add Bulk MySQL Instances tabs are identical to those used to add a single instance, with the exception of the Instance Address field, which is replaced by the Connection Endpoints field in the bulk version. To add multiple MySQL instances, add the comma-separated list of MySQL addresses ...
Section 16.3.2, “Adding Multiple MySQL Instances” Note These buttons depend on the permissions defined for the user. If the permissionMySQL Instancesis set to Read-Only, the buttons are visible, but inactive, and it is not possible to add instances. ...
to multiple rows (in the case of a one-to-many or many-to-many relationship) it is necessary to distinguish between just deleting the row for just the current entry and deleting it completely from the database, in which case it will also be deleted from any other rows that reference it...
In startup Configure: 复制 app.UseHttpsRedirection(); app.UseStaticFiles(); app.UseCookiePolicy(); app.UseStatusCodePages(async context => { var request = context.HttpContext.Request; var response = context.HttpContext.Response; if (response.StatusCode == (int)HttpStatusCode.Unauthorized) { ...
Best way to release memory in multithreading application (Getting OutOfMemory Exception) Best way to stop a thread. Best way to stop a windows service with an error condition in a spawned thread? Best way to UPDATE multiple rows in oracle database better formatting of date/timestamp for creat...
Text for the change log: Adding a unique key on multiple columns, where one of the columns is null, could mistakenly report duplicate key errors.[14 Oct 2010 8:35] Bugs System Pushed into mysql-5.1-telco-7.0 5.1.51-ndb-7.0.20 (revid:martin.skold@mysql.com-20101014082627-jrmy9xbfbtreb...
Description: When trying to add some inserts (data) to a table in the inserts view and then clicking on another table in an EER diagram, Workbench is predictably crashing. This affects multiple tables in the EER, though some INSERTs did go in without issue initially. How to repeat: 1. Do...
3 rows in set (0.00 sec) query looks very scary but infact much better thanoriginalone. In thereal queries you can table withids just aswe had tableof dayswith a where clauseinstead of precreated table. Related Process MySQL LIMIT & ORDERBY forPerformance Optimization 1,2023In "...
2. Create a new table with a fabricated name, and with all the schema changes in place. Note: if you are making multiple changes, do them in a single ALTER. 3. Do (effectively) "INSERT INTO new SELECT ... FROM old" -- This is the longest step. If the system crashes during thi...