2019獨(dú)角獸企業(yè)重金招聘Python工程師標(biāo)準(zhǔn)>>>

leetCode sql沒幾道題 就開始 收費(fèi)模式了

Select all employee's name and bonus whose bonus is < 1000.Table:Employee+-------+--------+-----------+--------+ | empId | name | supervisor| salary | +-------+--------+-----------+--------+ | 1 | John | 3 | 1000 | | 2 | Dan | 3 | 2000 | | 3 | Brad | null | 4000 | | 4 | Thomas | 3 | 4000 | +-------+--------+-----------+--------+ empId is the primary key column for this table. Table: Bonus+-------+-------+ | empId | bonus | +-------+-------+ | 2 | 500 | | 4 | 2000 | +-------+-------+ empId is the primary key column for this table. Example ouput:+-------+-------+ | name | bonus | +-------+-------+ | John | null | | Dan | 500 | | Brad | null | +-------+-------+這些被鎖的題目 不能在線驗(yàn)證了solution：SELECTEmployee.name, Bonus.bonus FROMEmployeeLEFT JOINBonus ON Employee.empid = Bonus.empid WHEREbonus < 1000 OR bonus IS NULL ;Note: "LEFT OUTER JOIN" could be written as "LEFT JOIN".

轉(zhuǎn)載于:https://my.oschina.net/u/2277632/blog/1589125

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