oracle 行列转换
行列转换
| 说明：行列转换包括以下六种情况： 1)列转行 2)行转列 3)多列转换成字符串 4)多行转换成字符串 5)字符串转换成多列 6)字符串转换成多行 --首先声明一点，有些例子需要如下10g及以后才有的功能： A.掌握model子句 B.正则表达式 C.加强的层次查询 |
| 测试表创建 CREATE TABLE t_col_row( ID INT, c1 VARCHAR2(10), c2 VARCHAR2(10), c3 VARCHAR2(10)); INSERT INTO t_col_row VALUES (1, 'v11', 'v21', 'v31'); INSERT INTO t_col_row VALUES (2, 'v12', 'v22', NULL); INSERT INTO t_col_row VALUES (3, 'v13', NULL, 'v33'); INSERT INTO t_col_row VALUES (4, NULL, 'v24', 'v34'); INSERT INTO t_col_row VALUES (5, 'v15', NULL, NULL); INSERT INTO t_col_row VALUES (6, NULL, NULL, 'v35'); INSERT INTO t_col_row VALUES (7, NULL, NULL, NULL); COMMIT; SELECT * FROM t_col_row; SELECT id, 'c2' cn, c2 cv FROM t_col_row; |
1.1.1 列转行
说明：转换方式有：
1. UNION ALL
| --适用范围：8i,9i,10g及以后版本 SELECT * FROM t_col_row; --若空行不需要转换，只需加一个where条件 SELECT id, 'c1' cn, c1 cv FROM t_col_row where c1 is not null UNION ALL SELECT id, 'c2' cn, c2 cv FROM t_col_row where c2 is not null UNION ALL SELECT id, 'c3' cn, c3 cv FROM t_col_row where c3 is not null; |
2. MODEL
| --适用范围：10g及以后 SELECT id, cn, cv FROM t_col_row MODEL RETURN UPDATED ROWS PARTITION BY (ID) DIMENSION BY (0 AS n) MEASURES ('xx' AS cn,'yyy' AS cv,c1,c2,c3) RULES UPSERT ALL ( cn[1] = 'c1', cn[2] = 'c2', cn[3] = 'c3', cv[1] = c1[0], cv[2] = c2[0], cv[3] = c3[0] ) ORDER BY ID,cn; |
3. COLLECTION
| --适用范围：8i,9i,10g及以后版本 --要创建一个对象和一个集合： CREATE TYPE cv_pair AS OBJECT(cn VARCHAR2(10),cv VARCHAR2(10)); CREATE TYPE cv_varr AS VARRAY(8) OF cv_pair; SELECT id, t.cn AS cn, t.cv AS cv FROM t_col_row, TABLE(cv_varr(cv_pair('c1', t_col_row.c1), cv_pair('c2', t_col_row.c2), cv_pair('c3', t_col_row.c3))) t ORDER BY 1, 2; |
1.1.2 行转列
| 说明： 把上面的表进行转换成行 CREATE TABLE t_row_col AS SELECT id, 'c1' cn, c1 cv FROM t_col_row UNION ALL SELECT id, 'c2' cn, c2 cv FROM t_col_row UNION ALL SELECT id, 'c3' cn, c3 cv FROM t_col_row; SELECT * FROM t_row_col ORDER BY 1,2; |
1. AGGREGATE FUNCTION
| --适用范围：8i,9i,10g及以后版本 SELECT id, MAX(decode(cn, 'c1', cv, NULL)) AS c1, MAX(decode(cn, 'c2', cv, NULL)) AS c2, MAX(decode(cn, 'c3', cv, NULL)) AS c3 FROM t_row_col GROUP BY id ORDER BY 1; /*MAX聚集函数也可以用sum、min、avg等其他聚集函数替代。 被指定的转置列只能有一列，但固定的列可以有多列，请看下面的例子：*/ SELECT mgr, deptno, empno, ename FROM emp ORDER BY 1, 2; SELECT mgr, deptno, MAX(decode(empno, '7788', ename, NULL)) "7788", MAX(decode(empno, '7902', ename, NULL)) "7902", MAX(decode(empno, '7844', ename, NULL)) "7844", MAX(decode(empno, '7521', ename, NULL)) "7521", MAX(decode(empno, '7900', ename, NULL)) "7900", MAX(decode(empno, '7499', ename, NULL)) "7499", MAX(decode(empno, '7654', ename, NULL)) "7654" FROM emp WHERE mgr IN (7566, 7698) AND deptno IN (20, 30) GROUP BY mgr, deptno ORDER BY 1, 2; /*这里转置列为empno，固定列为mgr，deptno。 还有一种行转列的方式，就是相同组中的行值变为单个列值，但转置的行值不变为列名：*/ ID CN_1 CV_1 CN_2 CV_2 CN_3 CV_3 1 c1 v11 c2 v21 c3 v31 2 c1 v12 c2 v22 c3 3 c1 v13 c2 c3 v33 4 c1 c2 v24 c3 v34 5 c1 v15 c2 c3 6 c1 c2 c3 v35 7 c1 c2 c3 --这种情况可以用分析函数实现： SELECT id, MAX(decode(rn, 1, cn, NULL)) cn_1, MAX(decode(rn, 1, cv, NULL)) cv_1, MAX(decode(rn, 2, cn, NULL)) cn_2, MAX(decode(rn, 2, cv, NULL)) cv_2, MAX(decode(rn, 3, cn, NULL)) cn_3, MAX(decode(rn, 3, cv, NULL)) cv_3 FROM (SELECT id, cn, cv, row_number() over(PARTITION BY id ORDER BY cn, cv) rn FROM t_row_col) GROUP BY ID; |
2. PL/SQL
| - |
| CREATE OR REPLACE PACKAGE pkg_dynamic_rows_column AS TYPE refc IS REF CURSOR; PROCEDURE p_print_sql(p_txt VARCHAR2); FUNCTION f_split_str(p_str VARCHAR2, p_division VARCHAR2, p_seq INT) RETURN VARCHAR2;
PROCEDURE p_rows_column_real(p_table IN VARCHAR2, --用于前述的第一种不限定列的转换 p_keep_cols IN VARCHAR2, p_pivot_col IN VARCHAR2, p_pivot_val IN VARCHAR2, p_where IN VARCHAR2 DEFAULT NULL, p_refc IN OUT refc); PROCEDURE p_rows_column(p_table IN VARCHAR2, --用于前述的第二种不限定列的转换 p_keep_cols IN VARCHAR2, p_pivot_cols IN VARCHAR2, p_where IN VARCHAR2 DEFAULT NULL, p_refc IN OUT refc); END; |
| CREATE OR REPLACE PACKAGE BODY pkg_dynamic_rows_column AS
PROCEDURE p_print_sql(p_txt VARCHAR2) IS v_len INT;
BEGIN v_len := length(p_txt); FOR i IN 1 .. v_len / 250 + 1 LOOP dbms_output.put_line(substrb(p_txt, (i - 1) * 250 + 1, 250)); END LOOP; END;
FUNCTION f_split_str(p_str VARCHAR2, p_division VARCHAR2, p_seq INT) RETURN VARCHAR2 IS v_first INT; v_last INT; BEGIN IF p_seq < 1 THEN RETURN NULL; END IF; IF p_seq = 1 THEN IF instr(p_str, p_division, 1, p_seq) = 0 THEN RETURN p_str; ELSE RETURN substr(p_str, 1, instr(p_str, p_division, 1) - 1); END IF; ELSE v_first := instr(p_str, p_division, 1, p_seq - 1); v_last := instr(p_str, p_division, 1, p_seq); IF (v_last = 0) THEN IF (v_first > 0) THEN RETURN substr(p_str, v_first + 1); ELSE RETURN NULL; END IF; ELSE RETURN substr(p_str, v_first + 1, v_last - v_first - 1); END IF; END IF; END f_split_str;
PROCEDURE p_rows_column(p_table IN VARCHAR2, p_keep_cols IN VARCHAR2, p_pivot_cols IN VARCHAR2, p_where IN VARCHAR2 DEFAULT NULL, p_refc IN OUT refc) IS v_sql VARCHAR2(4000); TYPE v_keep_ind_by IS TABLE OF VARCHAR2(4000) INDEX BY BINARY_INTEGER; v_keep v_keep_ind_by; TYPE v_pivot_ind_by IS TABLE OF VARCHAR2(4000) INDEX BY BINARY_INTEGER; v_pivot v_pivot_ind_by; v_keep_cnt INT; v_pivot_cnt INT; v_max_cols INT; v_partition VARCHAR2(4000); v_partition1 VARCHAR2(4000); v_partition2 VARCHAR2(4000); BEGIN v_keep_cnt := length(p_keep_cols) - length(REPLACE(p_keep_cols, ',')) + 1; v_pivot_cnt := length(p_pivot_cols) - length(REPLACE(p_pivot_cols, ',')) + 1; FOR i IN 1 .. v_keep_cnt LOOP v_keep(i) := f_split_str(p_keep_cols, ',', i); END LOOP; FOR j IN 1 .. v_pivot_cnt LOOP v_pivot(j) := f_split_str(p_pivot_cols, ',', j); END LOOP; v_sql := 'select max(count(*)) from ' || p_table || ' group by '; FOR i IN 1 .. v_keep.LAST LOOP v_sql := v_sql || v_keep(i) || ','; END LOOP; v_sql := rtrim(v_sql, ','); EXECUTE IMMEDIATE v_sql INTO v_max_cols; v_partition := 'select '; FOR x IN 1 .. v_keep.COUNT LOOP v_partition1 := v_partition1 || v_keep(x) || ','; END LOOP; FOR y IN 1 .. v_pivot.COUNT LOOP v_partition2 := v_partition2 || v_pivot(y) || ','; END LOOP; v_partition1 := rtrim(v_partition1, ','); v_partition2 := rtrim(v_partition2, ','); v_partition := v_partition || v_partition1 || ',' || v_partition2 || ', row_number() over (partition by ' || v_partition1 || ' order by ' || v_partition2 || ') rn from ' || p_table; v_partition := rtrim(v_partition, ','); v_sql := 'select '; FOR i IN 1 .. v_keep.COUNT LOOP v_sql := v_sql || v_keep(i) || ','; END LOOP; FOR i IN 1 .. v_max_cols LOOP FOR j IN 1 .. v_pivot.COUNT LOOP v_sql := v_sql || ' max(decode(rn,' || i || ',' || v_pivot(j) || ',null))' || v_pivot(j) || '_' || i || ','; END LOOP; END LOOP; IF p_where IS NOT NULL THEN v_sql := rtrim(v_sql, ',') || ' from (' || v_partition || ' ' || p_where || ') group by '; ELSE v_sql := rtrim(v_sql, ',') || ' from (' || v_partition || ') group by '; END IF; FOR i IN 1 .. v_keep.COUNT LOOP v_sql := v_sql || v_keep(i) || ','; END LOOP; v_sql := rtrim(v_sql, ','); p_print_sql(v_sql); OPEN p_refc FOR v_sql; EXCEPTION WHEN OTHERS THEN OPEN p_refc FOR SELECT 'x' FROM dual WHERE 0 = 1; END;
PROCEDURE p_rows_column_real(p_table IN VARCHAR2, p_keep_cols IN VARCHAR2, p_pivot_col IN VARCHAR2, p_pivot_val IN VARCHAR2, p_where IN VARCHAR2 DEFAULT NULL, p_refc IN OUT refc) IS v_sql VARCHAR2(4000); TYPE v_keep_ind_by IS TABLE OF VARCHAR2(4000) INDEX BY BINARY_INTEGER; v_keep v_keep_ind_by; TYPE v_pivot_ind_by IS TABLE OF VARCHAR2(4000) INDEX BY BINARY_INTEGER; v_pivot v_pivot_ind_by; v_keep_cnt INT; v_group_by VARCHAR2(2000); BEGIN v_keep_cnt := length(p_keep_cols) - length(REPLACE(p_keep_cols, ',')) + 1; FOR i IN 1 .. v_keep_cnt LOOP v_keep(i) := f_split_str(p_keep_cols, ',', i); END LOOP; v_sql := 'select ' || 'cast(' || p_pivot_col || ' as varchar2(200)) as ' || p_pivot_col || ' from ' || p_table || ' group by ' || p_pivot_col; EXECUTE IMMEDIATE v_sql BULK COLLECT INTO v_pivot; FOR i IN 1 .. v_keep.COUNT LOOP v_group_by := v_group_by || v_keep(i) || ','; END LOOP; v_group_by := rtrim(v_group_by, ','); v_sql := 'select ' || v_group_by || ','; FOR x IN 1 .. v_pivot.COUNT LOOP v_sql := v_sql || ' max(decode(' || p_pivot_col || ',' || chr(39) || v_pivot(x) || chr(39) || ',' || p_pivot_val || ',null)) as "' || v_pivot(x) || '",'; END LOOP; v_sql := rtrim(v_sql, ','); IF p_where IS NOT NULL THEN v_sql := v_sql || ' from ' || p_table || p_where || ' group by ' || v_group_by; ELSE v_sql := v_sql || ' from ' || p_table || ' group by ' || v_group_by; END IF; p_print_sql(v_sql); OPEN p_refc FOR v_sql; EXCEPTION WHEN OTHERS THEN OPEN p_refc FOR SELECT 'x' FROM dual WHERE 0 = 1; END; END; |
1.1.3 多列转换成字符串
1. || OR CONCAT
| CREATE TABLE t_col_str AS SELECT * FROM t_col_row; --这个比较简单，用||或concat函数可以实现： SELECT concat('a','b') FROM dual; --适用范围：8i,9i,10g及以后版本 SELECT * FROM t_col_str; SELECT ID,c1||','||c2||','||c3 AS c123 FROM t_col_str; |
1.1.4 多行转换成字符串
1. 创建demo表
| CREATE TABLE t_row_str( ID INT, col VARCHAR2(10)); INSERT INTO t_row_str VALUES(1,'a'); INSERT INTO t_row_str VALUES(1,'b'); INSERT INTO t_row_str VALUES(1,'c'); INSERT INTO t_row_str VALUES(2,'a'); INSERT INTO t_row_str VALUES(2,'d'); INSERT INTO t_row_str VALUES(2,'e'); INSERT INTO t_row_str VALUES(3,'c'); COMMIT; SELECT * FROM t_row_str; |
2. MAX + DECODE
| SELECT id,MAX(decode(rn, 1, col, NULL)) || MAX(decode(rn, 2, ',' || col, NULL)) || MAX(decode(rn, 3, ',' || col, NULL)) str FROM (SELECT id,col, row_number() over(PARTITION BY id ORDER BY col) AS rn FROM t_row_str) t GROUP BY id ORDER BY 1; |
3. ROW_NUMBER + LEAD
| oracle 统计分析函数 lead 语法结构： lead(value_expr [,offset][,default]) over([query_partition_clause] order by Order_by_clause) 参数说明： value_expr 值表达式，通常是字段，也可是是表达式。value_expr本身不支持分析函数， 也就是lead不支持多层调用。 offset 偏移，应该是很熟悉的数学概念了，或者是相对偏移，表格来开当前行的第offset行， 如果offset是整数就表示是顺序下的前第n行，如果是负数就是往后第n行。 如果不提供这个参数，就是默认为1. default 默认值，如果没有找到，应该返回什么值的意思，有点类似nvl(col,value)。 如果没有设置，且找不到，那么就返回Null over 可以简单地翻译为在什么。。。的基础之上 query_partition_clause 分区语句，对结果集合分区的语句，是可选的， 如果没有就是所有的一个分区。 Order_by_clause 排序语句 必须需要 ,形如order by xxx desc/asc
SELECT id, str FROM (SELECT id, row_number() over(PARTITION BY id ORDER BY col) AS rn, col || lead(',' || col, 1) over(PARTITION BY id ORDER BY col) || lead(',' || col, 2) over(PARTITION BY id ORDER BY col) || lead(',' || col, 3) over(PARTITION BY id ORDER BY col) AS str FROM t_row_str) WHERE rn = 1 ORDER BY 1; |
4. MODEL
| --适用范围：10g及以后版本 SELECT id, substr(str, 2) str FROM t_row_str MODEL RETURN UPDATED ROWS PARTITION BY(ID) DIMENSION BY(row_number() over(PARTITION BY ID ORDER BY col) AS rn) MEASURES (CAST(col AS VARCHAR2(20)) AS str) RULES UPSERT ITERATE(3) UNTIL( presentv(str[iteration_number+2],1,0)=0) (str[0] = str[0] || ',' || str[iteration_number+1]) ORDER BY 1; |
5. SYS_CONNECT_BY_PATH
| SELECT t.id id, MAX(substr(sys_connect_by_path(t.col, ','), 2)) str FROM (SELECT id, col, row_number() over(PARTITION BY id ORDER BY col) rn FROM t_row_str) t START WITH rn = 1 CONNECT BY rn = PRIOR rn + 1 AND id = PRIOR id GROUP BY t.id; --适用范围：10g及以后版本 SELECT t.id id, substr(sys_connect_by_path(t.col, ','), 2) str FROM (SELECT id, col, row_number() over(PARTITION BY id ORDER BY col) rn FROM t_row_str) t WHERE connect_by_isleaf = 1 START WITH rn = 1 CONNECT BY rn = PRIOR rn + 1 AND id = PRIOR id; |
6. WMSYS.WM_CONCAT
| /*适用范围：10g及以后版本 这个函数预定义按','分隔字符串，若要用其他符号分隔可以用，replace将','替换*/ SELECT id,REPLACE(wmsys.wm_concat(col), ',', '/') str FROM t_row_str GROUP BY id; |
1.1.5 字符串转换成多列
1. 说明
| --其实际上就是一个字符串拆分的问题。 CREATE TABLE t_str_col AS SELECT ID,c1||','||c2||','||c3 AS c123 FROM t_col_str; SELECT * FROM t_str_col; |
2. SUBSTR + INSTR
| SELECT id, c123, substr(c123,1,instr(c123 || ',', ',', 1,1) - 1) c1, substr(c123,instr(c123 || ',', ',',1,1) + 1, instr(c123 || ',', ',', 1,2) - instr(c123 || ',', ',', 1, 1) - 1) c2, substr(c123,instr(c123 || ',', ',', 1,2) + 1, instr(c123 || ',', ',', 1,3) - instr(c123 || ',', ',', 1,2) - 1) c3 FROM t_str_col ORDER BY 1; --或 SELECT id, c123, substr(c123,1,instr(c123, ',', 1,1) - 1) c1, substr(c123,instr(c123,',',1,1)+1,instr(c123,',',1,2)-instr(c123,',',1,1)-1) c2, substr(c123,instr(c123,',',1,2) + 1) c3 FROM t_str_col ORDER BY 1; |
3. REGEXP_SUBSTR
| --适用范围：10g及以后版本 SELECT id,c123, rtrim(regexp_substr(c123 || ',', '.*?' || ',', 1, 1), ',') AS c1, rtrim(regexp_substr(c123 || ',', '.*?' || ',', 1, 2), ',') AS c2, rtrim(regexp_substr(c123 || ',', '.*?' || ',', 1, 3), ',') AS c3 FROM t_str_col ORDER BY 1; |
1.1.6 字符串转换成多行
1. 说明
| CREATE TABLE t_str_row AS SELECT id, MAX(decode(rn, 1, col, NULL)) || MAX(decode(rn, 2, ',' || col, NULL)) || MAX(decode(rn, 3, ',' || col, NULL)) str FROM (SELECT id,col,row_number() over(PARTITION BY id ORDER BY col) AS rn FROM t_row_str) t GROUP BY id ORDER BY 1; SELECT * FROM t_str_row; |
2. UNION ALL
| SELECT id, 1 AS p, substr(str, 1, instr(str || ',', ',', 1, 1) - 1) AS cv FROM t_str_row UNION ALL SELECT id,2 AS p, substr(str,instr(str || ',', ',', 1, 1) + 1,instr(str || ',', ',', 1, 2) - instr(str || ',', ',', 1, 1) - 1) AS cv FROM t_str_row UNION ALL SELECT id,3 AS p, substr(str,instr(str || ',', ',', 1, 1) + 1,instr(str || ',', ',', 1, 2) - instr(str || ',', ',', 1, 1) - 1) AS cv FROM t_str_row ORDER BY 1, 2; --适用范围：10g及以后版本 SELECT id, 1 AS p, rtrim(regexp_substr(str||',', '.*?' || ',', 1, 1), ',') AS cv FROM t_str_row UNION ALL SELECT id, 2 AS p, rtrim(regexp_substr(str||',', '.*?' || ',', 1, 2), ',') AS cv FROM t_str_row UNION ALL SELECT id, 3 AS p, rtrim(regexp_substr(str||',', '.*?' || ',',1,3), ',') AS cv FROM t_str_row ORDER BY 1, 2; |
3. VARRAY
| --要创建一个可变数组： CREATE OR REPLACE TYPE ins_seq_type IS VARRAY(8) OF NUMBER; SELECT * FROM TABLE(ins_seq_type(1, 2, 3, 4, 5)); SELECT t.id,c.column_value AS p, substr(t.ca,instr(t.ca, ',', 1, c.column_value) + 1,instr(t.ca, ',', 1, c.column_value + 1) -(instr(t.ca, ',', 1, c.column_value) + 1)) AS cv FROM (SELECT id,',' || str || ',' AS ca,length(str || ',') - nvl(length(REPLACE(str, ',')), 0) AS cnt FROM t_str_row) t INNER JOIN TABLE(ins_seq_type(1, 2, 3)) c ON c.column_value <= t.cnt ORDER BY 1, 2; |
4. SEQUENCE SERIES
| /*这类方法主要是要产生一个连续的整数列，产生连续整数列的方法有很多，主要有： CONNECT BY,ROWNUM+all_objects,CUBE等。 适用范围：8i,9i,10g及以后版本*/ SELECT t.id,c.lv AS p, substr(t.ca,instr(t.ca, ',', 1, c.lv) + 1,instr(t.ca, ',', 1, c.lv + 1) -(instr(t.ca, ',', 1, c.lv) + 1)) AS cv FROM (SELECT id,',' || str || ',' AS ca,length(str || ',') - nvl(length(REPLACE(str, ',')), 0) AS cnt FROM t_str_row) t, ( SELECT LEVEL lv FROM dual CONNECT BY LEVEL <= 5) c WHERE c.lv <= t.cnt ORDER BY 1, 2;
SELECT t.id,c.rn AS p, substr(t.ca,instr(t.ca, ',', 1, c.rn) + 1,instr(t.ca, ',', 1, c.rn + 1) -(instr(t.ca, ',', 1, c.rn) + 1)) AS cv FROM (SELECT id,',' || str || ',' AS ca,length(str || ',') - nvl(length(REPLACE(str, ',')), 0) AS cnt FROM t_str_row) t, (SELECT rownum rn FROM all_objects WHERE rownum <= 5) c WHERE c.rn <= t.cnt ORDER BY 1, 2;
SELECT t.id,c.cb AS p, substr(t.ca,instr(t.ca, ',', 1, c.cb) + 1,instr(t.ca, ',', 1, c.cb + 1) -(instr(t.ca, ',', 1, c.cb) + 1)) AS cv FROM (SELECT id,',' || str || ',' AS ca,length(str || ',') - nvl(length(REPLACE(str, ',')), 0) AS cnt FROM t_str_row) t, (SELECT rownum cb FROM (SELECT 1 FROM dual GROUP BY CUBE(1, 2))) c WHERE c.cb <= t.cnt ORDER BY 1, 2; --适用范围：10g及以后版本 SELECT t.id,c.lv AS p,rtrim(regexp_substr(t.str || ',', '.*?' || ',', 1, c.lv), ',') AS cv FROM (SELECT id,str,length(regexp_replace(str || ',', '[^' || ',' || ']', NULL)) AS cnt FROM t_str_row) t INNER JOIN (SELECT LEVEL lv FROM dual CONNECT BY LEVEL <= 5) c ON c.lv <= t.cnt ORDER BY 1, 2; |
5. HIERARCHICAL + DBMS_RANDOM
| --适用范围：10g及以后版本 SELECT id,LEVEL AS p,rtrim(regexp_substr(str || ',', '.*?' || ',', 1, LEVEL), ',') AS cv FROM t_str_row CONNECT BY id = PRIOR id AND PRIOR dbms_random.VALUE IS NOT NULL AND LEVEL <=length(regexp_replace(str || ',', '[^' || ',' || ']', NULL)) ORDER BY 1, 2; |
6. HIERARCHICAL + CONNECT_BY_ROOT
| --适用范围：10g及以后版本 SELECT id,LEVEL AS p,rtrim(regexp_substr(str || ',', '.*?' || ',', 1, LEVEL), ',') AS cv FROM t_str_row CONNECT BY id = connect_by_root id AND LEVEL <=length(regexp_replace(str || ',', '[^' || ',' || ']', NULL)) ORDER BY 1, 2; |
7. MODEL
| --适用范围：10g及以后版本 SELECT id, p, cv FROM t_str_row MODEL RETURN UPDATED ROWS PARTITION BY(ID) DIMENSION BY( 0 AS p) MEASURES( str||',' AS cv) RULES UPSERT (cv [ FOR p FROM 1 TO length(regexp_replace(cv[0],'[^'||','||']',null)) INCREMENT 1 ] = rtrim(regexp_substr( cv[0],'.*?'||',',1,cv(p)),',')) ORDER BY 1,2 |