AddTable Method

Applies To

Description

This method adds a parameter to a database.

Usage

OParamArray AddTable(const char *name, int iotype, int servertype, int ArraySize, int ElementSize)

OParamArray AddTable(const char *name, int iotype, int serverType, int Dimension, int Size=0, char* object_name = NULL);

Arguments

Arguments	Description
name	The parameter name.
value	The initial value of the parameter.
iotype	Specifies whether this parameter is an input variable, an output variable, or both. The value should be one of: OPARAMETER_INVAR // in parameter OPARAMETER_OUTVAR // out parameter OPARAMETER_INOUTVAR // in/out parameter
servertype	The Oracle server type of parameter. See the GetServerType method.
ArraySize	Defines the number of elements in the parameter array. The maximum length of the buffer is 32512 bytes. This parameter is used to calculate the maximum buffer length. The valid range for this parameter depends on the VarType parameter as shown in the next table:
ElementSize	Defines the size of the array element for character or string type table parameters.
Dimension	Dimension of the array.
object_name	A case-sensitive string containing the name of the Object. This is only required if servertype is OTYPE_OBJECT, OTYPE_VARRAY, and OTYPE_TABLE. It is required for OTYPE_REF when the REF will be used in PL/SQL.

VarType	Dimension
OTYPE_NUMBER	Valid range from 1 to 1477
OTYPE_SINT	Same
OTYPE_FLOAT	Same
OTYPE_UINT	Same
OTYPE_VARCHAR2	Valid range from 1 to 32512. The maximum legal value of Dimension depends on the Size parameter. Size * Dimension should be less than 32512 bytes.
OTYPE_STRING	Same
OTYPE_VARCHAR	Same
OTYPE_CHARZ	Same
OTYPE_CHAR	Same
OTYPE_DATE	Valid range from 1 to 4644.

Remarks

These methods attach an OParamArray to an ODatabase. The name argument specifies the name of the parameter. To refer to the value of the OParameter within SQL statements, use :name.

The parameter that is created is referenced by the returned OParamArray object.

Return Value

An OParamArray, which will be open on success, closed on failure.

Example

OSession ses;

ODatabase odb;

long dbopt = 0; //the default is either no option, or the default set

char Msg[255];

char *pCharBuff = NULL;

int empno;

if (ses.Open() != OSUCCESS)

{

AfxMessageBox("session failed to open");

return;

}

odb.Open(ses, "ExampleDb", "scott", "tiger");

if(odb.IsOpen() != TRUE)

{

AfxMessageBox("database failed to open");

return;

}

else

AfxMessageBox("database open succeeded");

OParameterCollection params = odb.GetParameters();

params.Add("ArraySize", 3, OPARAMETER_INVAR, OTYPE_NUMBER);

OParamArray empnoarray = params.AddTable("EMPNOS", OPARAMETER_INVAR, OTYPE_NUMBER, 3);

OParamArray empnamesarray = params.AddTable("ENAMES", OPARAMETER_OUTVAR, OTYPE_VARCHAR2, 3, 10);

// Initialize EMPNOS array elements

empnoarray.SetValue(7698,0);

empnoarray.SetValue(7782,1);

empnoarray.SetValue(7654,2);

if(odb.ExecuteSQL("Begin Employee.GetEmpNamesInArray(:ArraySize, :EMPNOS, :ENAMES); End;" ) != OSUCCESS){

MessageBox("ExecuteSQL failed");

MessageBox(odb.GetServerErrorText());}

else

MessageBox("ExecuteSQL passed");

for (int count=0;count<3;count++){

empnamesarray.GetValue((const char **)&pCharBuff,count) ;

empnoarray.GetValue(&empno,count);

sprintf(Msg, "Emp name for emp#: %d is %s ", empno, pCharBuff);

MessageBox(Msg);

}