using column aliasesexampleto print column names
Using Column aliases
Example:
To print column names as NAME and ANNUAL SALARY SELECT ENAME "NAME", SAL*12 "ANNUAL SALARY" FROM EMP;
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data manipulation languagedata manipulation language dml describes a set of commands that are used to query and change data within existing schema
select statementthis statement is used for retrieving information from the databases it can be coupled with many clauses let us talk about these
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operator precedencethe basic operators used in sql are - operators of the similar priority are evaluated from left to rightparentheses are
using column aliasesexampleto print column names as name and annual salary select ename name sal12 annual salary from
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concatenation operatorexample printing name and job as one string as column name employees select enamejob employeesfrom
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