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Task
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-
Major
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Resolution:
Unresolved
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-
-
I run this script:
SET @a=10;
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SET @a=20,@b=@a;
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SELECT @a,@b;
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+------+------+
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| @a | @b |
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+------+------+
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| 20 | 10 |
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+------+------+
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No I wrap the same script into an anonymous SP block:
DELIMITER $$
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BEGIN NOT ATOMIC
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SET @a=10;
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SET @a=20,@b=@a;
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SELECT @a,@b;
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END
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$$
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+------+------+
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| @a | @b |
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+------+------+
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| 20 | 20 |
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+------+------+
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Notice:
- in the standalone script @b was assigned to the initial value of @a
- in the anonymous block @b was assigned to the new value of @a
We'll make multiple SET inside an SP work the same way with a standalone SET.
Note, multiple SET for SP variables should also work the same way.
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