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Table A has 10 records and Tab

[不定项选择题]
Table A has 10 records and Table B has 100 records, what’s the possible query result for the below SQL?
SELECT * from A left join B on A.col_1 = B.col_1
  • Get 1 Records
  • Get 10 Records
  • Get 100 Records
  • Get 1,000 Records
  • Get 10,000 Records
1. 若B与A对应字段相等的数量不足10个,则输出10行;
2. 若A10个相同的,B有10个与A相同的,输出10*10=100行;
3. ....B有100个相同的,输出100*10=1000行
发表于 2022-08-17 18:45:54 回复(0)