使用 sys.odcinumberlist 作为参数从 python 执行 PL/SQL 过程
Executing PL/SQL procedure from python with sys.odcinumberlist as parameter
给定一个 PL/SQL 过程:
PROCEDURE MyProc(myvar IN sys.odcinumberlist, curout OUT sys_refcursor);
如何使用 cx_Oracle 从 python 执行它?我在尝试
cursor.callproc('MyProc', (param, cursor_out))
参数为
[1, 2, 3]
或 cursor.arrayvar(cx_Oracle.NUMBER, [1, 2, 3])
但它会导致错误 'wrong number or type of arguments'.
使用conn.gettype
定义SYS.ODCINUMBERLIST
对象。然后用它来分配值列表(数字)
示例程序
create or replace procedure MyProc( myvar IN sys.odcinumberlist,
curout OUT sys_refcursor )
AS
BEGIN
open curout for select * from TABLE(myvar);
END;
/
Python代码
conn = cx_Oracle.connect('usr/pwd@//localhost:1521/DB')
cur = conn.cursor()
tableTypeObj = conn.gettype("SYS.ODCINUMBERLIST")
params = tableTypeObj.newobject()
po_cursor_out = cur.var(cx_Oracle.CURSOR)
params = tableTypeObj([1,2,3])
cur.callproc('hr.myproc', [ params, po_cursor_out])
result_cur = po_cursor_out.getvalue()
for row in result_cur:
print(row[0])
结果
1
2
3
给定一个 PL/SQL 过程:
PROCEDURE MyProc(myvar IN sys.odcinumberlist, curout OUT sys_refcursor);
如何使用 cx_Oracle 从 python 执行它?我在尝试
cursor.callproc('MyProc', (param, cursor_out))
参数为
[1, 2, 3]
或 cursor.arrayvar(cx_Oracle.NUMBER, [1, 2, 3])
但它会导致错误 'wrong number or type of arguments'.
使用conn.gettype
定义SYS.ODCINUMBERLIST
对象。然后用它来分配值列表(数字)
示例程序
create or replace procedure MyProc( myvar IN sys.odcinumberlist,
curout OUT sys_refcursor )
AS
BEGIN
open curout for select * from TABLE(myvar);
END;
/
Python代码
conn = cx_Oracle.connect('usr/pwd@//localhost:1521/DB')
cur = conn.cursor()
tableTypeObj = conn.gettype("SYS.ODCINUMBERLIST")
params = tableTypeObj.newobject()
po_cursor_out = cur.var(cx_Oracle.CURSOR)
params = tableTypeObj([1,2,3])
cur.callproc('hr.myproc', [ params, po_cursor_out])
result_cur = po_cursor_out.getvalue()
for row in result_cur:
print(row[0])
结果
1
2
3