以十分之一递增的 Firebird 生成器
Firebird generator that increments in tenths
我想使用 Firebird 2.5 创建一个生成器，它每 10 个单位而不是一个一个地递增一列。我在 Firebird 文档和网络上都找不到完成此操作的任何参考。
当使用next value for <sequence name> with a sequence (generator)时，它只能增加一个（Firebird序列没有指定更大值的默认增量的配置）：
Each time the NEXT VALUE FOR seq_name operator is used with that sequence, its value increases by 1. The GEN_ID(seq_name, <step>) function can be called instead, to "step" the series by a different integer number.
这也指向一个变通方法：使用增量大于 1 的遗留 gen_id 函数：
Increments a generator or sequence and returns its new value. From Firebird 2.0 onward, the SQL-compliant NEXT VALUE FOR syntax is preferred, except when an increment other than 1 is needed.
[..]
Syntax:
GEN_ID (generator-name, <step>)
换句话说：使用 GEN_ID(<sequence name>, 10) 将序列递增 10 而不是 1。
我想使用 Firebird 2.5 创建一个生成器，它每 10 个单位而不是一个一个地递增一列。我在 Firebird 文档和网络上都找不到完成此操作的任何参考。
当使用next value for <sequence name> with a sequence (generator)时，它只能增加一个（Firebird序列没有指定更大值的默认增量的配置）：
Each time the
NEXT VALUE FOR seq_nameoperator is used with that sequence, its value increases by 1. TheGEN_ID(seq_name, <step>)function can be called instead, to "step" the series by a different integer number.
这也指向一个变通方法：使用增量大于 1 的遗留 gen_id 函数：
Increments a generator or sequence and returns its new value. From Firebird 2.0 onward, the SQL-compliant
NEXT VALUE FORsyntax is preferred, except when an increment other than 1 is needed.
[..]
Syntax:GEN_ID (generator-name, <step>)
换句话说：使用 GEN_ID(<sequence name>, 10) 将序列递增 10 而不是 1。