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// Assuming strColumn, strTable, and strPKeyColumn are defined appropriately // Assuming strValue is the value to be compared // Retrieve the data type of the column from the database, e.g., using a query or from metadata // For the sake of example, let's assume the data type is stored in a variable called strColumnType // Building the query strQueryBuilder.Append("select isnull(" + strColumn + ", NULL) as output from " + strTable); // Check if a condition needs to be added if (strColumnType == "varchar" || strColumnType == "string") { strQueryBuilder.Append(" where " + strPKeyColumn + " = '" + strValue + "'"); } else if (strColumnType == "datetime") { // Format the date value appropriately based on the SQL syntax strQueryBuilder.Append(" where " + strPKeyColumn + " = '" + formatDateToSQL(strValue) + "'"); } else if (strColumnType == "bit") { strQueryBuilder.Append(" where " + strPKeyColumn + " = " + strValue); } else { strQueryBuilder.Append(" where " + strPKeyColumn + " = " + strValue); // default case } // Execute the query DataSet objDataSet = objDataAccess.ExecuteSQL(strQueryBuilder.ToString()); // Check if the DataSet is not null and contains data if (objDataSet != null && objDataSet.Tables.Count > 0 && objDataSet.Tables[0].Rows.Count > 0) { // Handle the output value string strOutputValueToCompare = ""; if (Convert.IsDBNull(objDataSet.Tables[0].Rows[0]["output"])) { strOutputValueToCompare = "NULL"; } else { strOutputValueToCompare = item4.fnReturnStringValue(objDataSet.Tables[0].Rows[0]["output"]); } fnf111RDBMSOutput(intCurrentRow, strOutputValueToCompare); } else { // Handle the case where the value is not fetched // Perform necessary operations when the value is not fetched }
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