RAD Studio VCL Reference
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Column names for result table from the built-in stored procedure DB_ADMIN.GET_DATATYPES. and DataStoreConnection.GetSchema(MetaDataCollectionName.DataTypes).
DataTypesColumns = class;
class DataTypesColumns;
DataTypesColumns.cs
DataTypesColumns provides the column names for the result table from the built-in stored procedure DB_ADMIN.GET_DATATYPES and DataStoreConnection.GetSchema(MetaDataCollectionName.DataTypes).
Each row in the result table of DB_ADMIN.GET_DATATYPES describes a data type. The columns of the result table are:
Constant |
Description |
Used to access the TypeName column in the DataTypes metadata collection. The data in this column specifies the database specific data type name. | |
Used to access the DbxDataType column in the DataTypes metadata collection. The data in this column specifies the DBX data type. | |
Used to access the ColumnSize column in the DataTypes metadata collection. The data in this column specifies the length of this type. For a string data type, this is the maximum number of characters. For a floating point number, this is the number of significant bits in the mantissa. For other numeric types, this is the maximum number of significant digits. For a date, time, and timestamp types, this is the length of the string representation. | |
Used to access the CreateFormat column in the DataTypes metadata collection. The data in this column specifies the create format as used in CREATE TABLE. | |
Used to access the CreateParameters column in the DataTypes metadata collection. The data in this column specifies the parameters for the create format. | |
Used to access the DataType column in the DataTypes metadata collection. The data in this column specifies the name of the language type representing this data type. | |
Used to access the IsAutoIncrementable column in the DataTypes metadata collection. The data in this column specifies that the data type can be used as for an autoincrement column. | |
Used to access the IsBestMatch column in the DataTypes metadata collection. The data in this column specifies that the data type is the best match for the language type. | |
Used to access the IsCaseSensitive column in the DataTypes metadata collection. The data in this column specifies that the data type is case sensitive. | |
Used to access the IsFixedLength column in the DataTypes metadata collection. The data in this column specifies that the data type is fixed length. | |
Used to access the IsFixedPrecisionScale column in the DataTypes metadata collection. The data in this column specifies that the data type is an exact numeric. | |
Used to access the IsLong column in the DataTypes metadata collection. The data in this column specifies that the data type is a blob type. | |
Used to access the IsNullable column in the DataTypes metadata collection. The data in this column specifies that the data type can be assigned a value of NULL. | |
Used to access the IsSearchable column in the DataTypes metadata collection. The data in this column specifies that the data type can be searched in the SQL database. | |
Used to access the IsSearchableWithLike column in the DataTypes metadata collection. The data in this column specifies that the data type can be search with the SQL LIKE operator. | |
Used to access the IsUnsigned column in the DataTypes metadata collection. The data in this column specifies that the data type is an unsigned numeric. | |
Used to access the MaximumScale column in the DataTypes metadata collection. The data in this column specifies the maximum possible scale value. | |
Used to access the MinimumScale column in the DataTypes metadata collection. The data in this column specifies the minimum possible scale value. | |
Used to access the IsConcurrencyType column in the DataTypes metadata collection. The data in this column specifies that the data type has special update semantics. | |
Used to access the MaximumVersion column in the DataTypes metadata collection. The data in this column specifies the last database product version where this type was avaliable. | |
Used to access the MinimumVersion column in the DataTypes metadata collection. The data in this column specifies the first database product version where this type was available. | |
Used to access the IsLiteralSupported column in the DataTypes metadata collection. The data in this column specifies that the data type can be represented as a SQL literal. | |
Used to access the LiteralPrefix column in the DataTypes metadata collection. The data in this column specifies the prefix of a SQL literal. | |
Used to access the LiteralSuffix column in the DataTypes metadata collection. The data in this column specifies the suffix of a SQL literal. | |
Used to access the IsUnicode column in the DataTypes metadata collection. The data in this column specifies that the data type can hold unicode character data. | |
Used to access the ProviderDbType column in the DataTypes metadata collection. The data in this column specifies a SQLDataStore data type from the constants in Borland.Data.DataStore.JdsType. Reserved for .NET applications. |
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