What does upper do in Oracle?

What does upper do in Oracle?

The Oracle UPPER() function converts all letters in a string to uppercase.

What are the performance tuning techniques in Oracle?

Prioritized Tuning Steps

• Step 1: Tune the Business Rules.
• Step 2: Tune the Data Design.
• Step 3: Tune the Application Design.
• Step 4: Tune the Logical Structure of the Database.
• Step 5: Tune Database Operations.
• Step 6: Tune the Access Paths.
• Step 7: Tune Memory Allocation.
• Step 8: Tune I/O and Physical Structure.

What is Oracle bottleneck?

Oracle Database performance problems can often be attributed to bottlenecks. This is where data has to traverse a process or route that increases response time by forcing traffic to ―slow down‖ due to the processes’ inability to move the data expediently.

What does upper function return?

Returns. The UPPER function returns a string/text value.

How do I use Initcap?

INITCAP returns char , with the first letter of each word in uppercase, all other letters in lowercase. Words are delimited by white space or characters that are not alphanumeric. char can be of any of the datatypes CHAR , VARCHAR2 , NCHAR , or NVARCHAR2 . The return value is the same datatype as char .

Are views faster than tables?

It all depends on the situation. MS SQL Indexed views are faster than a normal view or query but indexed views can not be used in a mirrored database invironment (MS SQL). A view in any kind of a loop will cause serious slowdown because the view is repopulated each time it is called in the loop. Same as a query.

How do you find database bottlenecks?

Symptoms of SQL Server Bottleneck

1. Disk Bottleneck. If the SQL Server is having slower response time or the disk counters are operating close to maximum values for a longer period of time, it is having bottlenecks.
2. Memory Bottleneck.
3. CPU Bottlenecks.
4. SQL Profiler.
5. Dynamic Management Views (DMVs)

What does bottleneck mean in business?

A bottleneck is a point of congestion in a production system (such as an assembly line or a computer network) that occurs when workloads arrive too quickly for the production process to handle. The inefficiencies brought about by the bottleneck often creates delays and higher production costs.

How do I perform an appraisal in Oracle Performance Management?

To perform the appraisal itself, you use Oracle Performance Management. Managers and workers use the self-service Appraisals function to define and conduct the appraisal process. Managers use this function to initiate and manage appraisals of their subordinates. Workers use this function to initiate appraisals of themselves.

How do I get Oracle Performance Management to populate the type field?

To ensure that Oracle Performance Management populates the Type field, you must update the lookup EMP_INTERVIEW_TYPE. When you create a new appraisal using the self-service Appraisals function, you select an appraisal template in the Appraisal Setup Details page.

What is Oracle Performance Management?

Oracle Performance Management provides a rich set of functions to support workforce-performance management and appraisal. HR Professionals can create a library of standard, reusable objective definitions for the enterprise to promote efficiency and consistency.

How do I view the Appraisal Summary for a performance management plan?

If a performance management plan has multiple appraisals, select the specific appraisal period to view the corresponding appraisal summary. This process does not update any information related to appraisals, rather populates the rating summary information for managers in a separate summary table.