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Actually there are many standard tables in SAP which contains many informations of various fields....but if u want a table with limited fields, u can create a Z table of only that fields...
Basing on client requirement we will decide whether we have to create ztable or to use existing table fields. If the client requires the fields which are not there in the existing table then we will create the ztable.
Actually there are many standard tables in SAP which contains many informations of various fields....but if u want a table with limited fields, u can create a Z table of only that fields...
SAP Dictionary Tables contains various types of records . These tables are provided by SAP itself. But If Customer wants to store any additional information that was not available in SAP Dictionary Tables , then we create ZTABLES.
See Vijay , there can be many reasons for creating a table .
Ztables we create in ALV so that we can directly use it for fetching values .
We can create z tables if the client wants that some data needs to be stored in the system and can be used afterwards if required.For eq if we want to see how much is claimed by which employee , we will put the data in a ztable and can fetch the value in other report to see that.
We can use Ztable for match code if we want to make a match code for a certain table .
So you can see that there are many reeasons for creating it .If you have specific question about creating it , then plz ask
Generally we create ztables as per customer requirement when we have tables having no common field and it is not possible to interrelate them so we take the particular fields and put them together in one table.
In real time environment some times we need to create ZTABLES, Even though SAP provides standard tables, may be some times they are not suitable for client requirement. At that moment we will go for ZTABLES.
For this they will give all the details like Development Class,
Fileds, Data types and length etc., What ever the required things you have , They will provide in Specification.
Mean while if you have any query on that which is not mentioned in spec. You put in your query sheet and send it across to the client. He will answer your questions. After that you will start your development.
Bluesky
