I want to select a column of a row in table 1, and then copy it to a row in table 2.

I want to select a column of a row in table 1 and then copy it to a row in table 2.
I want to select a column of a row in table 1 and assign a value to a column in table 2.

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The table you're referring to is HTML.
Or a table for a database?
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Update table_a set name= (select name from Table_b where id=1) where id=2;
I realized that the value segment of id=2 name in Table_a is updated to the name value of id=1 in Table_b
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First Print_r ($_session), see username is not in the end
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First Print_r ($_session), see username is not in the end

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