l_str_value := SUBSTR(p_string, l_start_pos); PIPE ROW(SplitStringWithSeqType(l_seq_num, l_str_value)); EXIT; ENDIF; l_str_value := SUBSTR(p_string, l_start_pos, l_end_pos - l_start_pos); PIPE ROW(SplitStringWithSeqType(l_seq_num, l_str_value)); l_start_pos := l_...
CREATE TABLE TempSubString( id SERIAL, studentid varchar(5), subname VARCHAR(150), PRIMARY KEY(id) ); insert into TempSubString(studentid,subname) SELECT 'S0001' AS STU,unnest(string_to_array('A,,B,C,D,A,B,D,B,,A,B,C,D,A,B,D,B,C,C,B,A,B,D,A,C,D,A,B,D,A,D,C,...
总结 PostgreSQL:直接支持数组类型,可以使用数组字面量和相关函数。 MySQL:没有内置的数组类型,但可以使用逗号分隔的字符串和FIND_IN_SET等函数来模拟。 SQL Server:从2016版本开始支持STRING_SPLIT函数,可以拆分字符串为多行。 自定义函数:在不支持内置函数的DBMS中,可以编写自定义函数来实现字符串到数组的转换。
SELECT * FROM STRING_SPLIT('hello sqlserver2022 SQLServer Management Studio',' ',1) /*消息 8144,级别 16,状态 3,第 100 行 为过程或函数 STRING_SPLIT 指定了过多的参数*/ 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 5.2、在SQLServer2022 SELECT * FROM STRING_SPLIT('hello sqlse...
END string_split; string_split 函数可以将输入的字符串以指定分隔符进行拆分,默认分隔符为逗号。例如: SELECT v.column_value FROM string_split('Oracle,MySQL,SQL Server,PostgreSQL,SQLit') v; COLUMN_VALUE| ---| Oracle | MySQL | SQL Server | ...
In this post, I am providing a solution to split a string by using a different type of delimiters in PostgreSQL. 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 ar...
STRING_SPLIT regexp_split_to_array or regexp_split_to_table STRING_AGG CONCAT_WS For more information, see String Functions and Operators in the PostgreSQL documentation. 이 페이지에서 SQL Server Usage PostgreSQL Usage Summary 페이지 내...
PostgreSQL split_part() function The PostgreSQL split_part function is used to split a given string based on delimiter and pick out the desire field from the string, start from left of the string. Example :SELECT split_part('ordno-#-orddt-#-ordamt', '-#-', 2); ...
In PostgreSQL,STRING_TO_ARRAY()is a built-in array function that accepts three arguments: a string, a delimiter, and a text to replace the null values. The STRING_TO_ARRAY() function accepts a string as the first argument, splits it into array elements, and concatenates the array elements...
无涯教程-PostgreSQL - String函数 PostgreSQL字符串函数主要用于字符串操作。下表详细介绍了重要的字符串函数- ASCII(str) 返回字符串str的最左边字符的数值。如果str是一个空字符串,则返回0。如果str为NULL,则返回NULL。 ASCII()适用于数字值介于0到255之间的字符。