[帮助文档] Dataphin的SQL任务中使用leftjoin报错:"ODPS-0130071:[4,4]Semanticanalysisexception-expectequalityexpression(i.e.,onlyuse'='and'AND')forjoinconditionwithoutmapjoinhint"
问题描述Dataphin的SQL任务中使用left join时报错:“ODPS-0130071:[4,4] Semantic analysis exception - expect equality expression (i.e., only use '=' and 'AND') for join...
MaxCompute SQL中的FULL OUTER JOIN和INNER JOI方法的作用是什么?
MaxCompute SQL中的FULL OUTER JOIN和INNER JOI方法的作用是什么?
SQL中的JOIN类型解释(CROSS, INNER,OUTER),关键字ON,USING
书上讲得明白,解了不少迷惑。 SELECT e.fname, e.lname, d.name FROM employee AS e INNER JOIN department AS d ON e.dept_id = d.dept_id; SELECT e.fname, e.lname,...
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