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Which of the following statement is true about embedded SQL?
Which of the following statements is true about embedded SQL? Hard-coded SQL statements in a program language such as Java. The process of making an application capable of generating specific SQL code on the fly. … Embedded SQL is applied for returning data that will be used in the main query as a condition.
What is embedded SQL statement?
Embedded SQL statements are SQL statements written inline with the program source code, of the host language. The embedded SQL statements are parsed by an embedded SQL preprocessor and replaced by host-language calls to a code library. The output from the preprocessor is then compiled by the host compiler.
Which of the following is used as the embedded SQL in C?
7. Which of the following is used as the embedded SQL in COBOL? Explanation: EXEC SQL <embedded SQL statement >; is normally in C.
Which of the following is are an intended purposes of embedded systems?
An embedded system is a small computer that forms part of a larger system, device or machine. Its purpose is to control the device and to allow a user to interact with it. They tend to have one, or a limited number of tasks that they can perform.
Which of the following statements about system information in Rdbms is true?
Which of the following is true concerning systems information in an RDBMS? RDBMS store database definition information in system-created tables. This information can be accessed using SQL. This information often cannot be updated by a user.
Which of the following is one of the basic approach for joining tables?
Which of the following is one of the basic approaches for joining tables? Explanation: The SQL subquery is a SELECT query that is embedded in the main SELECT statement. In many cases, a subquery can be used instead of a JOIN.
Which of the following is true about union query?
Combines the output from no more than two queries and must include the same number of columns. Combines the output from no more than two queries and does not include the same number of columns.
What is embedded SQL and its advantages?
Embedded SQL provides several advantages over a call-level interface: Embedded SQL is easy to use because it is simply Transact-SQL with some added features that facilitate using it in an application. It is an ANSI/ISO-standard programming language. … Embedded SQL is essentially identical across different host languages.
Which of the following is correct about JDBC?
Q 12 – Which of the following is correct about JDBC? A – The JDBC API provides the abstraction and the JDBC drivers provide the implementation. B – New drivers can be plugged-in to the JDBC API without changing the client code. C – Both of the above.
What are the major components of the JDBC?
JDBC Core Components
- DriverManager. The DriverManager class keeps track of the available JDBC drivers and creates database connections for you. …
- Driver. The Driver interface is primarily responsible for creating database connections. …
- Connection. …
- Statement. …
- ResultSet.
What is the correct order to close database resources Mcq?
The rules for closing JDBC resources are: The ResultSet object is closed first, then the Statement object, then the Connection object.