RAD Studio VCL Reference
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Accesses columns by ordinal in the ProcedureParameters metadata.
TDBXProcedureParametersIndex = class;
class TDBXProcedureParametersIndex;
TDBXProcedureParametersIndex is used to access columns by ordinal in the ProcedureParameters metadata collection. These columns are returned when TDBXCommand.Text is TDBXMetaDataCommands.GetProcedureParameters when reading metadata. To retrieve metadata columns, use these constants to index the TDBXReader instance returned by TDBXCommand.ExecuteQuery.
This table describes the columns.
Column Ordinal Name |
Data Type of Column Data |
Description |
String |
Catalog name. | |
String |
Schema name. | |
String |
Procedure name. | |
String |
Parameter name. | |
String |
Parameter mode: IN, OUT, INOUT, RESULT. | |
String |
Database specific data type name. | |
Precision of this type. For string data type, this is maximum number of characters. For decimal types, this is maximum number of digits, including digits from the scale. | ||
Scale of a decimal type. | ||
Position in rows of table, starting with 1. | ||
Boolean |
Can accept NULL values. | |
dbExpress data type. | ||
Boolean |
Holds fixed length data. | |
Boolean |
Can hold Unicode characters. | |
Boolean |
Is BLOB data type. | |
Boolean |
Is unsigned numeric type. |
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