How does query processing in relational systems differ from the processing of low-level query languages for network and hierarchical systems?
What will be an ideal response?
In first generation network and hierarchical database systems, the low-level procedural query
language is generally embedded in a high-level programming language such as COBOL, and it
is the programmer’s responsibility to select the most appropriate execution strategy. In
contrast, with declarative languages such as SQL, the user specifies what data is required
rather than how it is to be retrieved. This relieves the user of the responsibility of determining,
or even knowing, what constitutes a good execution strategy and makes the language more
universally usable
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What is the name of the development environment within the CMMI?
Fill in the blank(s) with the appropriate word(s).
When there is a problem with a formula, a(n) ________ appears
A) null B) error message C) circular reference D) conditional format
The ________ folder is where Outlook stores questionable emails until you decide to keep or delete them
Fill in the blank(s) with correct word
Case Based Critical Thinking QuestionsCase 6-3Akash created a custom form for his supervisor that includes a subform based on a query for unpaid invoices. After creating the form and viewing it in Form view, Akash needs to make some changes. Decide which options are best for Akash to use to make the necessary changes to the custom form design. Akash has included a calculated field in the subform which was created using a query for unpaid invoices. The calculated field should show the total amount of unpaid invoices from the InvoiceAmt field; however, the form does not show the calculation in Form view. Which expression will solve this problem?
A. Sum([InvoiceAmt]) B. =Sum([InvoiceAmt]) C. Count([InvoiceAmt]) D. =Count([InvoiceAmt])