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Issue with NULL data in column
Posted by: Tony Olivieri ()
Date: October 24, 2016 06:59AM

Good Day, using Arduino MySQL Connector ver 1.0.4 on Adafruit ESP8266 HUZAH. Data table set up with 12 columns, several which allow NULL's. Code is based upon the 'Basic Select Example'. When data returned contains NULL data in a column I get unexpected result shown below:

Running SELECT and printing results

SELECT TimeBased, collFrequency, collDuration, A_Time_HR, A_Time_MIN, B_Time_HR, B_Time_MIN, C_Time_HR, C_Time_MIN, CycleSync FROM mqttData.deviceParms WHERE devID = '1234'
1,3600,25,16,0,00û1m!3600,Time_HR, B_Time_MIN, C_Time_HR, C_Time_MIN, CycleSync FROM mqttData.deviceParms WHERE devID = ',234',ÿ?Äÿ?¼ ,?ä ÿ?$ ÿ?d ÿ?¤ ÿ?ä ÿ?$
ÿ?

If I populate null fields, I get data as expected shown below:

Running SELECT and printing results

SELECT TimeBased, collFrequency, collDuration, A_Time_HR, A_Time_MIN, B_Time_HR, B_Time_MIN, C_Time_HR, C_Time_MIN, CycleSync FROM mqttData.deviceParms WHERE devID = '1234'
1,3600,25,16,0,0,0,0,0,1

Is this behavior expected?

Thank you.

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Subject Views Written By Posted
Issue with NULL data in column 363 Tony Olivieri 10/24/2016 06:59AM
Re: Issue with NULL data in column 174 Chuck Bell 10/25/2016 11:01AM
Re: Issue with NULL data in column 252 Chuck Bell 10/25/2016 12:19PM
Re: Issue with NULL data in column 201 Chuck Bell 10/25/2016 12:00PM
Re: Issue with NULL data in column 156 Chuck Bell 10/25/2016 12:18PM


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