我有一個奇怪的問題。COBOL嵌入式SQL
EXEC SQL SELECT
AVG(LER)
INTO :LER-MIN
FROM CENSUS.WORLDIMR
* WHERE CENSUS.WORLDIMR.COUNTRY LIKE 'L%'
END-EXEC.
這給予了72.2,但是當我使用
WHERE CENSUS.WORLDIMR.COUNTRY LIKE 'L%'
它給出了00.0。
在SPUFI然而嘗試這種:
select avg(ler)
from census.worldimr
where census.worldimr.country like 'L%';
釋放出71.33333333333。
我做錯了什麼?
這是程序:
000001 PROCESS SQL
000002 IDENTIFICATION DIVISION.
000003 PROGRAM-ID. CBL7.
000004 *--------------------
000005 ENVIRONMENT DIVISION.
000006 *--------------------
000007 CONFIGURATION SECTION.
000008 INPUT-OUTPUT SECTION.
000009 FILE-CONTROL.
000010 SELECT P3OUT ASSIGN TO UT-S-P3OUT.
000011
000012 DATA DIVISION.
000013 *-------------
000014 FILE SECTION.
000015 FD P3OUT
000016 RECORD CONTAINS 80 CHARACTERS
000017 LABEL RECORDS ARE OMITTED
000018 RECORDING MODE F
000019 DATA RECORD IS PRTREC.
000020
000021 01 PRTREC.
000022 02 LER-PRT PIC 99.9.
000023 02 FILLER PIC X(76).
000024
000025 WORKING-STORAGE SECTION.
000026 01 VARS.
000027 10 LER-MIN PIC S9(5)V9(1) USAGE COMP-3.
000028
000029 EXEC SQL INCLUDE SQLCA END-EXEC.
000030 ******************************************************************
000031 * TABLE(CENSUS.WORLDIMR) *
000032 ******************************************************************
000033 EXEC SQL DECLARE CENSUS.WORLDIMR TABLE
000034 (REGION CHAR(5) NOT NULL,
000035 COUNTRY CHAR(30) NOT NULL,
000036 YR CHAR(4) NOT NULL,
000037 IMR DECIMAL(5, 1) NOT NULL,
000038 IMRM DECIMAL(5, 1) NOT NULL,
000039 IMRF DECIMAL(5, 1) NOT NULL,
000040 IMR1_4 DECIMAL(5, 1) NOT NULL,
000041 IMR1_4M DECIMAL(5, 1) NOT NULL,
000042 IMR1_4F DECIMAL(5, 1) NOT NULL,
000043 IMR_5 DECIMAL(5, 1) NOT NULL,
000044 IMR_5M DECIMAL(5, 1) NOT NULL,
000045 IMR_5F DECIMAL(5, 1) NOT NULL,
000046 LER DECIMAL(5, 1) NOT NULL,
000047 LERM DECIMAL(5, 1) NOT NULL,
000048 LERF DECIMAL(5, 1) NOT NULL
000049 ) END-EXEC.
000050 ******************************************************************
000051 * COBOL DECLARATION FOR TABLE CENSUS.WORLDIMR *
000052 ******************************************************************
000053 01 WORLDIMR.
000054 10 REGION PIC X(5).
000055 10 COUNTRY PIC X(30).
000056 10 YR PIC X(4).
000057 10 IMR PIC S9(4)V9(1) USAGE COMP-3.
000058 10 IMRM PIC S9(4)V9(1) USAGE COMP-3.
000059 10 IMRF PIC S9(4)V9(1) USAGE COMP-3.
000060 10 IMR1-4 PIC S9(4)V9(1) USAGE COMP-3.
000061 10 IMR1-4M PIC S9(4)V9(1) USAGE COMP-3.
000062 10 IMR1-4F PIC S9(4)V9(1) USAGE COMP-3.
000063 10 IMR-5 PIC S9(4)V9(1) USAGE COMP-3.
000064 10 IMR-5M PIC S9(4)V9(1) USAGE COMP-3.
000065 10 IMR-5F PIC S9(4)V9(1) USAGE COMP-3.
000066 10 LER PIC S9(4)V9(1) USAGE COMP-3.
000067 10 LERM PIC S9(4)V9(1) USAGE COMP-3.
000068 10 LERF PIC S9(4)V9(1) USAGE COMP-3.
000069
000070 PROCEDURE DIVISION.
000071 *------------------
000072 EXEC SQL SELECT
000073 AVG(LER)
000074 INTO :LER-MIN
000075 FROM CENSUS.WORLDIMR
000076 WHERE CENSUS.WORLDIMR.COUNTRY LIKE 'L%'
000077 END-EXEC.
000078 OPEN OUTPUT P3OUT.
000079 MOVE LER-MIN TO LER-PRT.
000080 WRITE PRTREC.
000081 CLOSE P3OUT.
000082 STOP RUN.
您確定連接到相同的數據庫/服務器嗎? – lad2025
很奇怪。你確定你是連接到相同的數據庫,作爲同一個用戶嗎? – jarlh
是的,我很確定。每次我嘗試使用WHERE CENSUS.WORLDIMR.COUNTRY LIKE'L%'它顯示00.0 – bastel