regexp_split_to_table 和 regexp_split_to_array 都是字符串分隔函数,可通过指定的表达式进行分隔。区别是 regexp_split_to_table 将分割出的数据转成行,regexp_split_to_array 是将分隔的数据转成数组。 https://zhangzw.com/posts/20200601.html...
In Postgresql, the regexp_split_to_array() function is used to split the specified string into an array using the specified POSIX regular expressions. The strings as well as the POSIX regular expression are provided to the function as an argument. This expression will act as a separator for ...
array_lower(anyarray, int)intreturns lower bound of the requested array dimensionarray_lower('[0:2]={1,2,3}'::int[], 1)0 array_prepend(anyelement, anyarray)anyarrayappend an element to the beginning of an arrayarray_prepend(1, ARRAY[2,3]){1,2,3} array_to_string(anyarray, text...
1.split_part a.语法介绍 split_part(string text, delimiter text, field int) Split string on delimiter and return the given field (counting from one) b.实际例子 postgres=# select split_part('abc~@~def~@~ghi','~@~', 2); split_part --- def (1 row) postgres=# select split_part('...
✅ 最佳回答: 您可以将其拆分为一个数组,然后访问每个数组元素: select col1, elements[1] as col2, elements[2] as col3 from ( select col1, regexp_split_to_array(col1, '\s*;\s*') as elements from the_table ) t 本站已为你智能检索到如下内容,以供参考: 🐻 相关问答 5 个 1、...
Splitting a string is a very common requirement for all PostgreSQL Database Developers. I used regexp_split_to_array to split the string and store the result into a string array. You can pass any delimiters. Below are two sample example using regexp_split_to_array(): ...
array_to_string(spcacl, E'\n') AS "Access privileges(访问权限)" --,spcoptions AS "Options(参数)" ,pg_catalog.pg_size_pretty(pg_catalog.pg_tablespace_size(oid)) AS "Size(表空间大小)" --,pg_catalog.shobj_description(oid, 'pg_tablespace') AS "Description(备注)" from pg_catalog.pg...
SELECT STRING_TO_ARRAY(emp_name, ' ') FROM employee_data; The above snippet authenticates that the STRING_TO_ARRAY() function was executed successfully. The STRING_TO_ARRAY() function splits the input string into array elements. The output shows that the return type of the returned array ...
regexp_split_to_array函数的行为和regexp_split_to_table相同,不过regexp_split_to_array会把它的结果以一个text数组的形式返回。它的语法是regexp_split_to_array(string, pattern [, flags ])。这些参数和regexp_split_to_table的相同。 一些例子: ...
黄河入海流 \t\t 欲穷千里目\t\t更上一层楼" print(poem_str) # 1、拆分字符串 split...