COLUMN_NAME_EX

The new home for Visual Studio documentation is Visual Studio 2017 Documentation on docs.microsoft.com.

The latest version of this topic can be found at COLUMN_NAME_EX.

Represents a binding on the rowset to the specific column in the rowset. Similar to COLUMN_NAME, except that this macro also takes data type, size, precision, scale, column length, and column status.

Syntax

  
COLUMN_NAME_EX(  
pszName  
,   
wType  
,   
nLength  
,   
nPrecision  
,   
nScale  
,   
data  
,   
length  
,   
status )  

Parameters

pszName
[in] A pointer to the column name. The name must be a Unicode string. You can accomplish this by putting an 'L' in front of the name, for example: L"MyColumn".

wType
[in] The data type.

nLength
[in] The data size in bytes.

nPrecision
[in] The maximum precision to use when getting data and wType is DBTYPE_NUMERIC. Otherwise, this parameter is ignored.

nScale
[in] The scale to use when getting data and wType is DBTYPE_NUMERIC or DBTYPE_DECIMAL.

data
[in] The corresponding data member in the user record.

length
[in] The variable to be bound to the column length.

status
[in] The variable to be bound to the column status.

Remarks

See COLUMN_NAME for information on where the COLUMN_NAME_* macros are used.

Requirements

Header: atldbcli.h

See Also

Macros and Global Functions for OLE DB Consumer Templates
BEGIN_ACCESSOR
BEGIN_ACCESSOR_MAP
BEGIN_COLUMN_MAP
COLUMN_NAME
COLUMN_NAME_LENGTH
COLUMN_NAME_LENGTH_STATUS
COLUMN_NAME_STATUS
COLUMN_NAME_PS
COLUMN_NAME_PS_LENGTH
COLUMN_NAME_PS_STATUS
COLUMN_NAME_PS_LENGTH_STATUS
COLUMN_NAME_TYPE
COLUMN_NAME_TYPE_PS
COLUMN_NAME_TYPE_SIZE
COLUMN_NAME_TYPE_STATUS