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#null
#nullable type
#database field
#programming
#optional value
#empty set
#nil
#none
#value or null
💻🔡`[40]
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#string length
#database field
#char
#programming limit
#data type length
#coding characters
🖥️🖱️□
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#data field
#input field
#text box
#form field
#database field
#entry field
#null #nullable type #database field #programming #optional value #empty set #nil #none #value or null