Oracle SQL Basics - Substitution Variables
4:00
YouTubeTECH EASY LEARNING
Oracle SQL Basics - Substitution Variables
A substitution variable is a user variable name preceded by one or two ampersands (&). When SQL*Plus encounters a substitution variable in a command, SQL*Plus executes the command as though it contained the value of the substitution variable, rather than the variable itself. && “&&” is used to create a permanent substitution variable. You ...
2.8K viewsApr 6, 2017
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