| TDeleteCommand |
Describes a DELETE statement, including the target table and the WHERE conditions that identify the rows to delete.
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| TDMLCommand |
Abstract base class for all DML command descriptors, carrying the target table reference.
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| TGetNextSequence​Value​Command |
Describes a request to retrieve the next value from a named database sequence.
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| TInsertCommand |
Describes an INSERT statement, including the target table and the fields and parameter placeholders to supply values for.
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| TSelectCommand |
Describes a SELECT query, including the fields to retrieve, the source relation, WHERE filters, GROUP BY, HAVING, ORDER BY, and row-range limits.
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| TUpdateCommand |
Describes an UPDATE statement, including the target table, the fields to modify, and the WHERE conditions that identify the rows to update.
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