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CREATE OR REPLACE TYPE str_split is TABLE of VARCHAR2 (4000); CREATE OR REPLACE FUNCTION splitstr (p_string in VARCHAR2, P_delimiter in VARCHAR2) Return Str_split pipelined As V_length Number: = Length (p_string); V_start number: = 1; V_index number; BEGIN while (V_start <= v_length) LOOP V_index: = INSTR (p_string, P_delimiter, V_start);
IF V_index = 0 THEN PIPE ROW (SUBSTR (p_string, V_start)); V_start: = v_length + 1; ELSE PIPE ROW (SUBSTR (p_string, V_start, V_index-v_start)); V_start: = V_index + 1; End IF; End LOOP;
return; End Splitstr, after you've created it, let's test it, for example, execute the following sql:
SELECT * FROM table (splitstr (' hello,cnblogs! ', ', '); its output is a two-row table, as shown in the following figure:
To display rows as columns:
Select A.column_value V1,b.column_value v2 from (select RowNum rn,t.* from table (splitstr (' hello,cnblogs! ', ', ') t)) A, (select RowNum rn,t.* from table (splitstr (' hello,cnblogs! ', ', ') t)) b where A.rn=1 and b.rn=2 as shown:
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