concatenation operatorexample printing name and
Concatenation operator
Example :
Printing name and job as one string as column name employees: SELECT ENAME||JOB "EMPLOYEES"
FROM EMP;
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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
the temp gradient is similar to finding the slope of a line when in two dimensionstemp gradient change in temp valuedistancedtdx t2 - t1x2 -
concatenation operatorexample printing name and job as one string as column name employees select enamejob employeesfrom
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using literal character stringexampleto print ltnamegt is a ltjobgt as one string with column name employeeselect ename is a job as employee from
to eliminate duplicate rows distinct operator exampleselect distinct deptno from
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