Let’s say, you want to analyze the stages of a query that is spending most of the time in, you need to enable the respective logging using the below query. 1 2 3 4 5 MySQL> update performance_schema.setup_consumers set ENABLED='YES' where NAME='events_stages_current'; Query OK, ...
NoSQL databases do not have a schema in the same rigid way that relational databases have a schema. Each of the four main types of NoSQL database has an underlying structure that is used to store the data. But the details of how the data is organized is very flexible, sometimes even ...
Intricate SQLite schema elements like foreign keys, triggers, or user-defined functions may not be accurately translated by the ODBC driver. This may lead to inconsistencies in the target SQL databases. ODBC Driver does basic data transformations but lacks in dealing with complex data structures....
Can one of you help me tell the best possible way to export an entire schema (all objects inside it) in SQL Server 2016. For example, i just to export the AdventureWorks2016CTP3.HumanResources schema in SQL Server 2016. I see 2 options....
How to: Set the Expiration Period for Subscriptions (Replication Transact-SQL Programming) How to: Specify Schema Options (SQL Server Management Studio) How to: Specify Schema Options (Replication Transact-SQL Programming) How to: Replicate Schema Changes (SQL Server Management Studio) How to: Repli...
➞ SQL Server In SQL Server, you’ll use theIDENTITYkeyword to set your primary key (oritem_numberin our use case). By default, the starting value ofIDENTITYis 1, and it will increment by 1 with each new entry unless you tell it otherwise. ...
You must set up a repository to house the necessary repository tables and PL/SQL packages before you can convert Microsoft SQL Server to Oracle. Follow these steps to achieve this: You can skip these steps if you already have a migration repository and a mwrep orcl connection. Step 1: To...
update departments set manager_id = 108 where department_id in (120, 130, 140); Commit; The results displayed are the objects your HR schema owns. 4. Review the results of the above by returning to the data tab for the table and select refresh. (or writing a SQL query in the SQL ...
At first, i have to mention the architecture in Figure1which is used all the time when you search the keywords 'Nosql' && 'MySQL'. Figure Figure 1: Memcached with InnoDB Architecture 3 Get MySQL source code MySQL with memcached was just in MySQL Labs before, now it's contained in trunk...
TheUNIONoperator in SQL tells the database to merge two separate result sets retrieved through individualSELECTqueriesinto one result set that contains rows returned from both queries. Note:Databases don’t restrict the complexity of theSELECTqueries used withUNION. The data retrieval queries can incl...