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Posted by / 03-Nov-2019 03:26

Sql updating primary key value

When SET ANSI_PADDING OFF then CHAR data types are padded with spaces, VARCHAR data types have trailing spaces removed, and VARBINARY have trailing zeros removed.For instance, if a field is defined as CHAR(10) and you update the value ‘Kris’ into this column, then it will be padded with six spaces.

Suppose you were asked to provide a list of all Adventure Works2012 product categories and subcategories.

Some of the common ones are: In these cases, the UPDATE statement execution stops and the UPDATE generates an error.

No rows from the UPDATE statement are saved into the table, even those rows that didn’t generate an error.

Unions are typically used where you have two results whose rows you want to include in the same result.

A use case may be that you have two tables: Teachers and Students.

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