what version of mysql are datasources using?
I have a calculated table that uses a join statement SQL query as its data source. good. Works fine.
But then I'm trying to add in the use of :Parameters and my attempts to create a default if it equals null are not working.
I tried this (In the onLoad client script):
if (app.datasources.Relations.query.parameters.x== null){
console.log("No xfound,using >");
app.datasources.Relations.query.parameters.x= ">";}
It works, but not on the initial load (it appears to apply AFTER the first load).
So I decided to try and bake it into the sql statement that makes the table like this, but all three of these iterations failed with "check your version of mysql" errors.
AND b.CSI_Code REGEXP select if(:x= null, "<",:x)
AND b.CSI_Code REGEXP select if(:x== null, "<",:x)
AND b.CSI_Code REGEXP select if(:x=== null, "<",:x)
I've got a workaround going where I set my parameters to the APP onload rather than the datasource onload,but ultimately I think it would be cleaner if I could get the SQL if nul set to default (">") part working.
If you have access to the Google Cloud Platform where your database is hosted, it lists the database version in the instance information (see picture). Per the FAQ, the options are currently MySQL 5.5, 5.6, or 5.7. If you click into the instance, and go to the Databases tab, each app has its own database with a name like "Wc7cVzeGEvbPjxj4". To confirm which database your app uses, the name should be listed in your Google App Maker app under (Your app in the developer GUI) > Settings Cog Icon > Database > Database Key.
