and i need to add a column in temp table with a column named 1001!!! my actual objective is to add a new column to temp whenever a value is added to empid!! plz help.. Sorry, you can't reply to this topic. It has been closed. ...
A collation is a set of rules that defines how to compare and sort character strings. Each collation in MySQL belongs to a single character set. Every character set has at least one collation, and most have two or more collations.
mysql - adding alias columns as new column I have the following mysql query.. select x.timest, max(case when xdevloc='outside' then x.value end) as outside, max(case when x.devloc='hvac_main_return' then x.value end) as hvac_main_return, max(case when x.devloc='hvac_...
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”....
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to add another unique column to act as the primary key. The internal GEN_CLUST_INDEX one is not exposed to the upper MySQL layer, and only theInnoDB engine is aware of it, hence it is useless for replication speed. Therefore, an explicit PK is always a better solution. However, if...
1 row in set, 1 warning (0.00 sec) A conclusionfrom this is we want smallerprimary keys if possible. ’s this table accordingly 1 2 3 mysql> alter tablet1 drop primarykey, column idint primarykey autoincrement; QueryOK, 0 rows affected(16.66 sec) Records: 0 Duplicates...
Bug #45724Adding a column returns an unhandled exception. Submitted:24 Jun 2009 18:33Modified:24 Jul 2009 20:36 Reporter:Paul WarrenEmail Updates: Status:No FeedbackImpact on me: None Category:MySQL WorkbenchSeverity:S3 (Non-critical)
In my environment I have a table with around 5 million records and two indexes. I want to know what will be the effect on the existing indexes, if i add a new column to this table i.e. whether indexes are dropped and created again or updated somehow or there is no effect at al...
and i need to add a column in temp table with a column named 1001!!! my actual objective is to add a new column to temp whenever a value is added to empid!! plz help.. Sorry, you can't reply to this topic. It has been closed....