lrvtc_query_column
Retrieves the data in a field.
C Language
VTCERR2 lrvtc_query_column ( char *columnName, int rowIndex );
C# Language
void vts.query_column ( string columnName, int rowIndex );
Java Language
int Lrvtc.query_column ( string columnName, int rowIndex );
Arguments
Name | Comments |
---|---|
columnName | The name of the column. |
rowIndex | The number of the row. The first row has index 1. |
lrvtc_query_column retrieves the data in a field and stores it in a parameter with the same name as the column.
If there is no data in a cell, the output isNULL
.
Return Values
C Language: Returns zero on success or one of the
C# Language: No return value.
Java Language: Returns zero on success or one of the Error Codes.
Parameterization
All string input arguments can be passed using standard parameterization.
C Language Example
int rc; int rowNum; ... rowNum = 10; rc = lrvtc_query_column("C_credit", rowNum); lr_log_message("query_column rc=%d\n", rc); lr_log_message("Column C_credit, row %d, value is %s", rowNum, lr_eval_string("{C_credit}"));
C# Language Example
.Net Single Connection Example
Java Language Example