How we create abap query

Question

how we create abap query can any1 tell me?

Answer 1

Reporting tool :Standard reports
Purpose :Provide solutions for your most frequent reporting requirements
Advantages :Can be used immediately
No developments required
Limitations :Limited flexibility
Output fields cannot be selected as required
HIS
Purpose :Hierarchies are displayed as graphics
Reports are executed using selected structures or substructures, that is, using preselected sets of objects
Advantages :User-friendly method of displaying hierarchical structures
Integration with InfoSet Query and standard reports
No need to switch from one HR application to another if you want to execute reports from different applications
Little training required
Limitations : Limited flexibility
Tool is used to execute standard reports and customer reports
It cannot be used to create reports
InfoSet Query
Purpose :Intuitive, general SAP reporting tool used to create customer reports
Enables you to create reports for all areas of HR
When InfoSet Query is accessed from Human Resources (HR), the Query area and User group parameters already contain values and you can only perform ad hoc reporting. If InfoSet Query is accessed this way, it is called Ad Hoc Query in HR (see HR in InfoSet Query).
Advantages :User-friendly interface
Very easy to use
No programming required
If integrated with SAP Query, you can continue processing queries using SAP Query
Set operations enable you to create sets of objects as required for which data must be output
Can be included in roles using a suitable InfoSet
Limitations :InfoSets and user groups must be defined in SAP Query before you can use InfoSet Query
Multiline lists cannot be displayed
SAP Query
Purpose :General SAP reporting tool used to create customer reports
Individual definition of user groups, InfoSets, and queries
Advantages :Extremely flexible
No programming required
Queries can be provided in the SAP Easy Access menu
Includes numerous options for aggregating data, performing calculations, and displaying graphics
Enables you to display multiline lists
Enables you to define one basic list and several statistics and ranked lists for each query
Limitations :Restricted to data from the R/3 System
Each HR query can process data from just one HR logical database:
PNP: Administration, Time Management, and Payroll
PCH: Generally for all areas, but particularly suitable for reporting on data from Personnel Planning
PAP: Recruitment
Requires much more training than other options
Limitations:Data is extracted from OLTP systems, that is, real-time data is not accessed
Business Information Warehouse
Purpose :Analytical reporting tool used for information and decision-making purposes
Advantages : Extremely flexible
Facilitates complex calculations (calculation of averages, time series comparisons)
Enables you to access non-SAP data
Easy to use
Uses OLAP technology
Includes detailed Business Content (HR extractors, InfoCubes, key figures, and standard queries
i think it is adhoc query not abap query