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it shows you what the field and the records are made of
ADVANTAGES of INDEXED FILES 1. Quite easy to process, 2. With proper selection of a key field, records in a large file can be searched and accessed in very quickly. 3. Any field of the records can be used as the key. The key field can be numerical or alphanumerical. DISADVANTAGES of INDEXED FILES 1. Extra data structures have to be maintained (the COBOL run-time modules take care of these and it is not the programmers' concern). These extra data structures maintained on the disk can use up much disk space, especially for long key values. 2. The indexed files have to be reorganized from time time to get rid of deleted records and improve performance that gets gradually decreased with addition of new records.
The Differentiated Services Field.
The name for this is a list. Databases are records (lines and columns) in a big sheet. There are descriptions for what goes into what field, and automated actions for bringing the list data back out.
Computers absolutely dominate the field of computer programing. They also seem ubiquitous is IT, graphic design, computer aided animation, and data entry. They have made surprisingly few inroads into the field of plumbing.
A criteria that searches for fields that are not empty is called a "not null" criteria. This criteria is used to filter out records where a specific field does not have a null or empty value.
Could've been answered faster if choices were available.The answer is Is Not Null
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Data entry jobs exist for a lot of fields, especially the medical field. They need to hire people for data entry because of updating insurance and keeping records of appointments and any changes in health and location.
Because it uniquely identifies each record in that table, No two records can have the exact same entry in the field designated as the primary key.
The "Query Builder" button within GFEBS allows a user to search for specific records or field entries based on specific characteristics of the information. This feature enables users to customize their search criteria and filter results to find the information they need efficiently.
You can use criteria for fields to restrict what they can show. The criteria could be something like to only show records that have a field with values that are over a certain amount or to only show records that contain specific data. So you could have a list of staff, but only want to show those working in a particular department, or you might have a list of exam results but only want to show people who achieved a score that is higher than a certain amount. You do this by applying criteria to the appropriate field.
selected field or fields to sort records
Your grades do not meet the criteria you can no longer go on the field trip.
You can be trained to maintain veterinary records as a veterinary assistant. However, the pay is fairly minimal for this type of work, and most veterinarians either keep their records themselves or have a veterinary technician assist with the records.
Selection field
Selection field