Question

如何将两个SQL查询合并为一个？

SELECT *FROM table1 WHERE chapter=88 AND sentence>=23
SELECT *FROM table1 WHERE chapter=89 AND sentence>=1 AND sentence<=23

Answer 1

这是一种方式

SELECT *FROM table1 WHERE chapter=88 AND sentence>=23
UNION ALL
SELECT *FROM table1 WHERE chapter=89 AND sentence>=1 AND sentence<=23

但你应该养成明确列出列的习惯。列必须对齐或不起作用。

这是另一种方式

SELECT * FROM table1 
WHERE (chapter=88 AND sentence>=23) OR (chapter=89 AND sentence>=1 AND sentence<=23)

Answer 2

您可以加入以下查询：

SELECT * FROM table1 
WHERE 
(chapter = 88 AND sentence >= 23) 
OR 
(chapter = 89 AND sentence >= 1 AND sentence <= 23)

Answer 3

SELECT * 
FROM   TABLE1 
WHERE  ( CHAPTER = 88 
         AND SENTENCE >= 23 ) 
        OR ( CHAPTER = 89 
             AND SENTENCE >= 1 
             AND SENTENCE <= 23 )

Answer 4

试试这个：

SELECT * 
FROM   TABLE1 
WHERE  ( CHAPTER = 88 
         AND SENTENCE >= 23 ) 
        OR ( CHAPTER = 89 
             AND SENTENCE BETWEEN 1 AND 23 );

Answer 5

你有两种方法可以使用这样的表和一些示例数据

create table table1 (id number, chapter number, sentence number);

Insert into TABLE1 (ID,CHAPTER,SENTENCE) values (1,65,24);
Insert into TABLE1 (ID,CHAPTER,SENTENCE) values (2,22,22);
Insert into TABLE1 (ID,CHAPTER,SENTENCE) values (3,88,25);
Insert into TABLE1 (ID,CHAPTER,SENTENCE) values (4,89,15);
Insert into TABLE1 (ID,CHAPTER,SENTENCE) values (4,89,33);

您可以使用联合将两个集合组合在一起

SELECT *FROM table1 WHERE chapter=88 AND sentence>=23
UNION
SELECT *FROM table1 WHERE chapter=89 AND sentence>=1 AND sentence<=23;

或合并where子句中的谓词以实现相同的目的

SELECT *FROM table1 WHERE (chapter=88 AND sentence>=23) or 
                          (chapter=89 AND sentence>=1 AND sentence<=23);

两者都会给出这个结果

|        ID|   CHAPTER|  SENTENCE|
---------------------------------- 
|         3|        88|        25|
|         4|        89|        15|

Answer 6

试试这个：

SELECT * FROM table1
WHERE (chapter=88 and sentence>=23) 
OR (chapter=89 and sentence>=1 and sentence<=23)

这应该返回两个查询的结果。

Answer 7

SELECT * 
  FROM table1
 WHERE (chapter = 88 AND sentence >= 23)
    OR (chapter = 89 AND sentence >= 1 AND sentence <= 23)

Answer 8

Select *
  From table1
 where ((chapter=88 AND sentence>=23)
     OR (chapter=89 AND sentence>=1 AND sentence<=23));

此外，您可以在第二个子句中使用BETWEEN关键字。

Answer 9

SELECT *FROM table1 WHERE chapter=88 AND sentence>=23
UNION
SELECT *FROM table1 WHERE chapter=89 AND sentence>=1 AND sentence<=23

合并两个SQL查询

9 个答案: