template:
quot_rule: |
必须对模式名、表名、字段名、别名外层加双引号(")。
1. 点号(.)不能包含在引号内,必须写成 "schema"."table"
2. 即使标识符不含特殊字符或非关键字,也需强制加双引号
3. 达梦默认将未加引号的标识符转为大写
limit_rule: |
当需要限制行数时,必须使用达梦兼容的语法
1. 标准写法:LIMIT [count]
2. 分页写法:LIMIT [offset], [count] 或 LIMIT [count] OFFSET [start]
3. 兼容Oracle写法:WHERE ROWNUM <= 100(需达梦7+版本)
other_rule: |
必须为每个表生成别名(不加AS)
{multi_table_condition}
禁止使用星号(*),必须明确字段名
中文/特殊字符字段需保留原名并添加英文别名
函数字段必须加别名
百分比字段使用TO_CHAR(x*100,'990.99') || '%'
避免与达梦关键字冲突(如LEVEL/ORDER/PARTITION等)
basic_example: |
📌 以下示例严格遵循中的 达梦(DM) 规范,展示符合要求的 SQL 写法与典型错误案例。
⚠️ 注意:示例中的表名、字段名均为演示虚构,实际使用时需替换为用户提供的真实标识符。
🔍 重点观察:
1. 双引号包裹所有数据库对象的规范用法
2. 中英别名/百分比/函数等特殊字段的处理
3. 关键字冲突的规避方式
查询 TEST.ORDERS 表的前100条订单(含中文字段和百分比)
SELECT * FROM TEST.ORDERS LIMIT 100 -- 错误:未加引号、使用星号
SELECT "订单ID", "金额" FROM "TEST"."ORDERS" "t1" WHERE ROWNUM <= 100 -- 错误:混用ROWNUM和LIMIT
SELECT COUNT("订单ID") FROM "TEST"."ORDERS" "t1" -- 错误:函数未加别名
SELECT
"t1"."订单ID" AS "order_id",
"t1"."金额" AS "amount",
COUNT("t1"."订单ID") AS "total_orders",
TO_CHAR("t1"."折扣率" * 100, '990.99') || '%' AS "discount_percent"
FROM "TEST"."ORDERS" "t1"
LIMIT 100
统计用户表 PUBLIC.USERS(含关键字字段LEVEL)的活跃占比
SELECT LEVEL, status FROM PUBLIC.USERS -- 错误:未处理关键字
SELECT "LEVEL", ROUND(active_ratio*100) FROM "PUBLIC"."USERS" -- 错误:百分比格式错误
SELECT
"u"."LEVEL" AS "user_level",
TO_CHAR("u"."active_ratio" * 100, '990.99') || '%' AS "active_percent"
FROM "PUBLIC"."USERS" "u"
WHERE "u"."status" = 1
LIMIT 0, 1000 -- 达梦兼容写法
example_engine: DM Database 8
example_answer_1: |
{"success":true,"sql":"SELECT \"country\" AS \"country_name\", \"continent\" AS \"continent_name\", \"year\" AS \"year\", \"gdp\" AS \"gdp_usd\" FROM \"Sample_Database\".\"sample_country_gdp\" ORDER BY \"country\", \"year\"","tables":["sample_country_gdp"],"chart-type":"line"}
example_answer_1_with_limit: |
{"success":true,"sql":"SELECT \"country\" AS \"country_name\", \"continent\" AS \"continent_name\", \"year\" AS \"year\", \"gdp\" AS \"gdp_usd\" FROM \"Sample_Database\".\"sample_country_gdp\" ORDER BY \"country\", \"year\" LIMIT 1000","tables":["sample_country_gdp"],"chart-type":"line"}
example_answer_2: |
{"success":true,"sql":"SELECT \"country\" AS \"country_name\", \"gdp\" AS \"gdp_usd\" FROM \"Sample_Database\".\"sample_country_gdp\" WHERE \"year\" = '2024' ORDER BY \"gdp\" DESC","tables":["sample_country_gdp"],"chart-type":"pie"}
example_answer_2_with_limit: |
{"success":true,"sql":"SELECT \"country\" AS \"country_name\", \"gdp\" AS \"gdp_usd\" FROM \"Sample_Database\".\"sample_country_gdp\" WHERE \"year\" = '2024' ORDER BY \"gdp\" DESC LIMIT 1000","tables":["sample_country_gdp"],"chart-type":"pie"}
example_answer_3: |
{"success":true,"sql":"SELECT \"country\" AS \"country_name\", \"gdp\" AS \"gdp_usd\" FROM \"Sample_Database\".\"sample_country_gdp\" WHERE \"year\" = '2025' AND \"country\" = '中国'","tables":["sample_country_gdp"],"chart-type":"table"}
example_answer_3_with_limit: |
{"success":true,"sql":"SELECT \"country\" AS \"country_name\", \"gdp\" AS \"gdp_usd\" FROM \"Sample_Database\".\"sample_country_gdp\" WHERE \"year\" = '2025' AND \"country\" = '中国' LIMIT 1000","tables":["sample_country_gdp"],"chart-type":"table"}