SQL / MySQL Table Index Column Dropping a Column mysql> mysql> mysql> CREATE TABLE sales_rep( -> employee_number INT, -> surname VARCHAR(40), -> first_name VARCHAR(30), -> commission TINYINT -> ); Query OK, 0 rows affected (0.00 sec) mysql> mysql> mysql> INSERT INTO sales_rep...
In the past months I dropped a few indexes, the operation took about 3 hours but did complete fine. Now I tried dropping a column (a tinyint(1)) on a dummy copy of the table, it fails after about 15 minutes saying : ERROR 2013 (HY000) at line 3: Lost connection to MySQL serv...
The reason for this is that the anonymous-user account has a more specific Host column value than the 'finley'@'%' account and thus comes earlier in the user table sort order. (For information about user table sorting, see Section 4.6, “Access Control, Stage 1: Connection Verification”....
Bug Report Please answer these questions before submitting your issue. Thanks! 1. Minimal reproduce step (Required) mysql> create table test (A int, B varchar(20), C int, D int, PRIMARY KEY(A,C) CLUSTERED); # drop column before the colum...
Inconsistent results after dropping index on join column Submitted:29 Mar 2024 6:42Modified:29 Mar 2024 7:27 Reporter:Jerome ChyiEmail Updates: Status:VerifiedImpact on me: None Category:MySQL Server: OptimizerSeverity:S2 (Serious) Version:8.0.36OS:Linux...
Try to drop a column using ALTER TABLE xxx DROP xx_id. What did you expect to see? According to MySQL's manual "If columns are dropped from a table, the columns are also removed from any index of which they are a part. If all columns that make up an index are dropped, the index...
(the maximum prefix length of a column across all indexes) is not updated when an index with the maximum prefix is dropped. This value is persisted in the .cfg file during FLUSH TABLES ... FOR EXPORT, causing a schema mismatch during import.How to repeat:create database src; create data...
For additional details on the table definition mentioned inRENAME ..., please consult the MySQL manual. Finally,DROP ...effectively removes the outdated table, without a doubt. To avoid error checking, one can useSELECT GET_LOCK('__upgrade', -1); ... DO RELEASE_LOCK('__upgrade');to ...
Creating a Table1. On the Standard toolbar, click New Database Object and specify the Table type in the dialog.2. Input the table name.3. Click Create and, if specified name is unique, the table editor will appear.4. Add at least one column to the table....
I tried the same SQL to drop a column as you would for a table, but it's a no-go. Can anyone help? If it's not possible to drop a column in VIEW, can anyone suggest how I can accomplish what I'm doing, which is to link a table with certain columns only?