Question

我从查询中填充了一个临时表，临时表看起来像是

ttcomp.inum
ttcomp.iname
ttcomp.iadd

此临时表中有5000条记录，现在我想写入CSV文件。我认为可以用output stream完成，但我不知道如何实现它。请有人帮我解决这个问题。

Answer 1

出口可以解决问题：

/* Define a stream */
DEFINE STREAM str.

/* Define the temp-table. I did some guessing according datatypes... */
DEFINE TEMP-TABLE ttcomp
    FIELD inum  AS INTEGER
    FIELD iname AS CHARACTER
    FIELD iadd  AS INTEGER.

/* Fake logic that populates your temp-table is here */
DEFINE VARIABLE i AS INTEGER     NO-UNDO.
DO i = 1 TO 5000:
    CREATE ttComp.
    ASSIGN 
        ttComp.inum  = i
        ttComp.iname = "ABC123"
        ttComp.iadd  = 3.

END.
/* Fake logic done... */

/* Output the temp-table */
OUTPUT STREAM str TO VALUE("c:\temp\file.csv").
FOR EACH ttComp NO-LOCK:
    /* Delimiter can be set to anything you like, comma, semi-colon etc */
    EXPORT STREAM str DELIMITER "," ttComp.
END.
OUTPUT STREAM str CLOSE.
/* Done */

Answer 2

还有替代方法。 EXPORT很好，因为格式无关紧要，因为EXPORT忽略格式。例如，您不希望日期格式为mm / dd / yy。在这种情况下，最好使用PUT STREAM并明确指定格式。

FOR EACH ttComp NO-LOCK:
    PUT STREAM str UNFORMATTED SUBSTITUTE("&1;&2;&3 \n", ttComp.inum, ttcomp.iname, ttcomp.iadd).
END.

Answer 3

这是一种没有流的替代方案。

/* Using the temp-table. of Jensd*/
DEFINE TEMP-TABLE ttcomp
    FIELD inum  AS INTEGER
    FIELD iname AS CHARACTER
    FIELD iadd  AS INTEGER.

OUTPUT TO somefile.csv APPEND.

    FOR EACH ttcomp:
                DISPLAY 
                    ttcomp.inum + ",":U  
                    ttcomp.iname + ",":U
                    ttcomp..iadd  SKIP. 
    END.

OUTPUT CLOSE.

如何在ABL编码中将数据写入CSV文件

3 个答案: