Since the precompiler for embedded SQL translates SQL statements into procedure calls, explain the di?erence between embedded SQL and call-level interfaces, such as ODBC and JDBC, where SQL statements are speci?ed as the arguments of procedure calls.
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With embedded SQL, the actual SQL statements to be executed are known at compile time while with the call-level interfaces, the SQL statement might not be known at compile time. They are just string variables that can be computed at run time and passed as arguments to host language procedures provided by the CLI. Thus in embedded SQL, the syntax of the SQL statements can be checked at compile time, and host language variables can be used as parameters of the SQL statements.
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