Field Calculator

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#qgis #fieldcalculator

Find-Replace Values in Attribute Table 
replace("field",'find value','replace value')
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#qgis #fieldcalculator

Round up to nearest 100 
ceil ( "field" * 0.01)*100
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#qgis,fieldcalculator

Cocatenate Fields into a new column 
"Column1" || '-'|| "Column2"

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Field Calculator

 @abovetheroar #PyQGIS
Find-Replace Values in Attribute Table Round up to nearest 100 Cocatenate Fields into a new column