📅 最后修改于: 2021-01-04 05:00:43 🧑 作者: Mango
SQLite GLOB运算符用于仅使用通配符将文本值与模式匹配。如果搜索表达式可以与模式表达式匹配，则GLOB运算符将返回true，即为1。与LIKE运算符不同，GLOB区分大小写，并且它遵循UNIX的语法来指定THE以下通配符。
星号(*)表示零个或多个数字或字符。问号(?)代表单个数字或字符。
以下是*和?的基本语法。 。
SELECT FROM table_name
WHERE column GLOB 'XXXX*'
or
SELECT FROM table_name
WHERE column GLOB '*XXXX*'
or
SELECT FROM table_name
WHERE column GLOB 'XXXX?'
or
SELECT FROM table_name
WHERE column GLOB '?XXXX'
or
SELECT FROM table_name
WHERE column GLOB '?XXXX?'
or
SELECT FROM table_name
WHERE column GLOB '????'
您可以使用AND或OR运算符组合N个条件。在此，XXXX可以是任何数字或字符串值。
下表列出了许多示例，这些示例显示WHERE部分的LIKE子句带有不同的’*’和’?’运算符。
| Sr.No. | Statement & Description |
|---|---|
| 1 |
WHERE SALARY GLOB ‘200*’ Finds any values that start with 200 |
| 2 |
WHERE SALARY GLOB ‘*200*’ Finds any values that have 200 in any position |
| 3 |
WHERE SALARY GLOB ‘?00*’ Finds any values that have 00 in the second and third positions |
| 4 |
WHERE SALARY GLOB ‘2??’ Finds any values that start with 2 and are at least 3 characters in length |
| 5 |
WHERE SALARY GLOB ‘*2’ Finds any values that end with 2 |
| 6 |
WHERE SALARY GLOB ‘?2*3’ Finds any values that have a 2 in the second position and end with a 3 |
| 7 |
WHERE SALARY GLOB ‘2???3’ Finds any values in a five-digit number that start with 2 and end with 3 |
让我们以一个真实的例子为例，考虑带有以下记录的COMPANY表-
ID NAME AGE ADDRESS SALARY
---------- ---------- ---------- ---------- ----------
1 Paul 32 California 20000.0
2 Allen 25 Texas 15000.0
3 Teddy 23 Norway 20000.0
4 Mark 25 Rich-Mond 65000.0
5 David 27 Texas 85000.0
6 Kim 22 South-Hall 45000.0
7 James 24 Houston 10000.0
下面是一个示例，它将显示COMPANY表中的所有记录，其中AGE以2开头。
sqlite> SELECT * FROM COMPANY WHERE AGE GLOB '2*';
这将产生以下结果。
ID NAME AGE ADDRESS SALARY
---------- ---------- ---------- ---------- ----------
2 Allen 25 Texas 15000.0
3 Teddy 23 Norway 20000.0
4 Mark 25 Rich-Mond 65000.0
5 David 27 Texas 85000.0
6 Kim 22 South-Hall 45000.0
7 James 24 Houston 10000.0
以下是一个示例，它将显示COMPANY表中的所有记录，其中ADDRESS在文本内将带有连字符(-)-
sqlite> SELECT * FROM COMPANY WHERE ADDRESS GLOB '*-*';
这将产生以下结果。
ID NAME AGE ADDRESS SALARY
---------- ---------- ---------- ---------- ----------
4 Mark 25 Rich-Mond 65000.0
6 Kim 22 South-Hall 45000.0