SUBSTRING は、文字列の一部を抽出するための標準SQL関数です。ISO/IEC 9075(通称ISO SQL)で定義されており、多くのデータベース製品でも対応しています。 SUBSTRINGはDBによって挙動が違います。いや少し語弊があるかもしれません。SUBSTRING('abcde' FROM 3 FOR 2)のよう ...
The following example shows the effect of SUBSTRING on both text and ntext data. First, this example creates a new table in the pubs database named npub_info. Second, the example creates the pr_info ...
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expression.Substring (start) => SUBSTRING (expression, start, LEN (expression)) You could perhaps do something like LEN (expression)- (start-1) but as noted in the T-SQL documentation, the start + ...
Is it possible to order by a substring in a returned field? I've got a query which returns at most probably around 10 or so rows of 1 column. However the way this data is formated, it'd be convient ...
I'm having to hack a report together to pull data from another field in the same table. The row selection is going to be based on various elements in the above 'foreignkey' field - elements 1, 2, 4 & ...