explain the steps in Figure $15\mathrm{.}1$Typical steps whenprocessing a high$-$level query.Query in a high level languageScanning, parsing, and validatingImmediate form of queryQuery optimizerExecution planQuery code generatorCode to execute the queryRuntime database processorResult of queryCode can be:Executed directly $($Ginterpreted mode$)$Stored and executed later wheneverneeded $($compiled mode$)$

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Figure 15.1 Typical steps when processing a high- level query. Query in a high level language Scanning, parsing, and validating Immediate form of query Query optimizer Execution plan Query code generator Code to execute the query Runtime database processor Result of query Code can be: Executed directly (interpreted mode) Stored and executed later whenever needed (compiled mode) Figure 15.1 Typical steps when processing a high- level query. Query in a high level language Scanning, parsing, and validating Immediate form of query Query optimizer Execution plan Query code generator Code to execute the query Runtime database processor Result of query Code can be: Executed directly (interpreted mode) Stored and executed later whenever needed (compiled mode)