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In the case of this script, evaluation of the model-checking function is triggered by performing a trace refinement (i.e language containment) check to see if the distinguished initial state (S.0 by convention) is a member of the set of states returned by the model-checking function. Spec5 = AU.(Atom.C, And.(Atom.A, Atom.B))įDR requires some kind of assertion about a process to be made in order to trigger the evaluation of a function. Spec2 = EU.(And.(Atom.A, Atom.B), Atom.C) Here are a few examples of CTL formulas expressed using the syntax defined above: To load data from this type of field, use the VARRAY, VARCHAR, or VARCHAR2 SQL*Loader data types.Example of a labelled finite state machine >=ĬTL formulas are expressed using a datatype that provides an abstract syntax for combining atomic propositions using various logical and temporal operators: Length-value pair fields (variable-length fields) .
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The clause PRESERVE BLANKS is not applicable to fields read from a LOBFILE. Predetermined size fields (fixed-length fields)ĭelimited fields (that is, TERMINATED BY or ENCLOSED BY) In LOBFILEs the data can be in any of the following types of fields, any of which can be used to load XML columns:Ī single LOB field into which the entire contents of a file can be read SQL*Loader reads LOBFILEs in 64 KB chunks.
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There is no requirement that a LOB from a LOBFILE fit in memory. This type of organization of data is ideal for LOB loading. Therefore, the processing overhead of dealing with records is avoided.
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In LOBFILEs, LOB data instances are still considered to be in fields (predetermined size, delimited, length-value), but these fields are not organized into records (the concept of a record does not exist within LOBFILEs). LOB data can be lengthy enough that it makes sense to load it from a LOBFILE instead of from a primary datafile.
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