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What are the features of embedded SQL? Explain.
Embedded SQL - SQL could be implemented within two ways. It can be used interactively or embedded in a host language or through using API. The use of SQL commands inside a host language (e.g., C, Java, etc.) program is known as embedded query language or Embedded SQL. While same capabilities are supported for a variety of host languages, the syntax sometimes varies. A few of the features of embedded SQL are:
SQL statements could be used while a statement in the host language is permitted. It merges the strengths of two programming environments, the procedural characteristics of host languages and non-procedural character of SQL.
SQL statements could refer to variables (must be prefixed by a colon in SQL statements) described in the host program.
Special program variables (known as null indicators) are used to assign and retrieve the NULL values to and from the database.
The facilities available by the interactive query language are also mechanically available to the host programs.
Embedded SQL along with host languages could be used to accomplish extremely complex and complex data access and manipulation tasks.
Spanned and unspanned organisation? Spanned and unspanned organization: If records are not permited to cross block boundaries then the organisation is called unspanned record
Although how will the system recover The selection of REDO or UNDO for a transaction for the recovery is completed on the basis of the state of the transactions. This state is
how to operate database in access ?
What is bucket overflow and how bucket overflow is handled through Over Flow Chaining or Closed Hashing? Ans: Bucket: unit of storage holding records. Bucket is a disk block
These permit the user to unload a database or parts of a database and reload the data on the similar machine, or on another machine in a dissimilar location. This can be useful in
What are the comparison operator in SQL? Comparison operator in SQL are =, LIKE and BETWEEN
Project Description: I need a point of sale for motels. It needs to run on windows and requires being network able so that we can have more than one computer using it at once.
Explain natural join? Natural Join - Similar as equi-join except in which the join attributes (having similar names) are not involved in the resulting relation. Only one sets
what does glory be mean
Log based recovery: Let us first describe the term transaction log in the context of DBMS. A transaction log is a record in DBMS that remains track of all the transactions of a dat
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