49 lines
5.5 KiB
Plaintext
49 lines
5.5 KiB
Plaintext
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jjrSSS jjrSSS jjrSS jrSSS jjrS S S jjrS S jr S S jr g ) uN 通用工具：年龄表达å¼�ã€�类型转æ�¢ã€�日期解æž�ã€�分页计算。é )Ú annotations)ÚdateÚdatetime)ÚDecimal©Úceil)ÚAny)ÚIntegerÚfuncÚtext)Ú
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5 $ [ R " [ S5 U [ R " 5 5 $ )uÿ 跨方言的"按当å‰�日期计算年龄"SQL 表达å¼�。
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模型里ä¸�è�½ age å—段：年龄是éš�时间漂移的派生值，è�½åº“第二天就会错。
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" X5 $ )uÒ ä¸¤ä¸ªæ—¥æœŸåˆ—ç›¸å‡�得到天数，跨方言。
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MySQL 用 DATEDIFF(end, start)；SQLite 用 julianday 差值�整。
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就业时长（需求 2.6.3）用它直接在 SQL 里算，ä¸�用把整表拉到内å˜ã€‚
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