note

SQL,SUBSTRING各種DBの挙動、Tsurugiもあるよ

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 ...
Ars Technica

T-SQL, order by substring?

Is it possible to order by a substring in a returned field?<BR>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 ...
GitHub

SubString startIndex is one character off in the generated SQL

closed-fixed The issue has been fixed and is/will be included in the release indicated by the issue milestone. type-bug ...
LinkedIn

Learn SQL Server SUBSTRING and CHARINDEX Functions Through Practical Example

SUBSTRING and CHARINDEX functions are two of the most commonly used string functions in SQL. They allow you to extract and search for substrings within strings. SUBSTRING: The SUBSTRING function is ...
LinkedIn

SQL Functions: COUNT, SUM, AVG, MAX, MIN, UPPER, LOWER, CONCAT, SUBSTRING, NOW, DATE, DATEDIFF

Most Common SQL Functions YouShould Know 🔢 Aggregate Functions • `COUNT()` – Counts rows ``` SELECT COUNT(*) FROM employees; ``` • `SUM()` – Adds up values ``` SELECT SUM(salary) FROM employees; ``` ...