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Practical practice of mysql sentence writing (combining left company with subquery)

2025-03-01 Update From: SLTechnology News&Howtos shulou NAV: SLTechnology News&Howtos > Database >

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Select

C.card_number

C.card_name

T.type_name

C.card_discount

T.type_low

C.card_integral

(c.card_recharge_balance+c.card_give_balance) as num

V.people

C.card_time

From

`vip_ Card` as c

Left join

(

Select

Count (vipid) as people

Card_number

From vip

Group by card_number

) as v

On

C.card_number=v.card_number

Left join

`vip_ type` as t

On

C.type_id=t.type_id

Where

C. Storekeeper keyword 556655'

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