PROC预编译时加入 COMMON_PARSER=YES 选项，支持预编译分析函数（比如 ROW_NUMBER 和 OVER）

PROC预编译时加入 COMMON_PARSER=YES 选项，支持预编译分析函数（比如 ROW_NUMBER 和 OVER）

示例：

SQL> DESC T1;

Name Null? Type

----------------------------------------- -------- ----------------------------

ID NUMBER

NAME VARCHAR2(10)

DATE1 DATE

SQL> SELECT * FROM T1;

ID NAME DATE1

---------- ------------------------------ ------------------

101 aaa 09-SEP-13

101 bbb 10-SEP-13

101 ccc 11-SEP-13

102 ddd 08-SEP-13

102 eee 11-SEP-13

下面以 SELECT ID,NAME,DATE1 FROM (SELECT ID,NAME,DATE1,ROW_NUMBER() OVER(partition by ID order by DATE1 desc) as rn FROM T1)T WHERE T.rn=1; 语句为例，在sqlplus提示符下执行结果正常，但在proc程序里预编译就不通过。

在sqlplus提示符下执行：

SQL> SELECT ID,NAME,DATE1 FROM (SELECT ID,NAME,DATE1,ROW_NUMBER() OVER(partition by ID order by DATE1 desc) as rn FROM T1)T WHERE T.rn=1;

ID NAME DATE1

---------- ------------------------------ ------------------

101 ccc 11-SEP-13

102 eee 11-SEP-13

在proc程序里预编译出错：

Syntax error at line 7541, column 77, file test.pc:

Error at line 7541, column 77 in file test.pc

EXEC SQL SELECT ID,NAME,DATE1 FROM (SELECT ID,NAME,DATE1,ROW_NUM

BER() OVER(partition by ID order by DATE1 desc) as rn FROM T1)T WHERE T.rn=1;

............................................................................1

PCC-S-02201, Encountered the symbol "(" when expecting one of the following:

, into, from,

Error at line 0, column 0 in file test.pc

解决办法：在预编译命令行上加 COMMON_PARSER=YES 选项即可。