They can include control statements that allow repetition (LOOP statement) and conditional execution (IF statement and CASE statement) of SQL statements.

 
  • 它們包括允許SQL語(yǔ)句的重復執行(LOOP語(yǔ)句)和條件執行(IF語(yǔ)句和CASE語(yǔ)句)的控制語(yǔ)句。
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