Oracle SQL Plus 未显示所有表列

Posted 2023-03-27

【中文标题】Oracle SQL Plus 未显示所有表列

【英文标题】：Oracle SQL Plus not all table columns displayed

【发布时间】：2017-05-21 09:13:12

【问题描述】：

我已经创建了这张表：

CREATE TABLE PRODUCT (
P_CODE                        CHAR(8),
P_DESCRIPT                    CHAR(200),
P_INDATE                      CHAR(20),
P_ONHAND                      INTEGER,
P_MIN                         INTEGER,
P_PRICE                       NUMBER,
P_DISCOUNT                    NUMBER,
V_CODE                        CHAR(5)
);

我在表格中插入了以下数据：

INSERT INTO PRODUCT VALUES ('11QER/31','Power painter, 15 psi, 3-nozzle','12/2/96',8,5,109.99,0.00,25595);
INSERT INTO PRODUCT VALUES ('13-Q2/P2','7.25-in. pwr. Saw blade','11/12/96',32,15,14.99,0.05,21344);
INSERT INTO PRODUCT VALUES ('14-Q1/L3','9.00-in. pwr. Saw blade','11/12/96',18,12,17.49,0.00,21344);
INSERT INTO PRODUCT VALUES ('156-QQ2','Hrd. Cloth, 1/4-in., 2x50','8/14/96',15,8,39.95,0.00,23119);
INSERT INTO PRODUCT VALUES ('1558-QW1','Hrd. Cloth, 1/2-in., 3x50','8/14/96',23,5,43.99,0.00,23119);
INSERT INTO PRODUCT VALUES ('2232/QTY','B&D jigsaw, 12-in, blade','10/29/96',8,5,109.92,0.05,24288);
INSERT INTO PRODUCT VALUES ('2232/QWE','B&D jigsaw, 8-in, blade','9/23/96',6,5,99.87,0.05,24288);
INSERT INTO PRODUCT VALUES ('2238/QPD','B&D cordless drill, 1/2-in.','10/19/96',12,5,38.95,0.05,25595);
INSERT INTO PRODUCT VALUES ('23109-HB','Claw hammer','11/19/96',23,10,9.95,0.10,21225);
INSERT INTO PRODUCT VALUES ('23114-AA','Sledge hammer, 12 lb.','12/1/96',8,5,14.40,0.05,null);
INSERT INTO PRODUCT VALUES ('54778-2T','Rat-tail file, 1/8-in. fine','6/14/96',43,20,4.99,0.00,'21344');
INSERT INTO PRODUCT VALUES ('89-WRE-Q','Hicut chain saw, 16 in.','7/6/96',11,5,256.99,0.05,'24288');
INSERT INTO PRODUCT VALUES ('PVC23DAT','PVC pipe, 3.5-in., 8-ft','12/19/96',188,75,5.87,0.00,null);
INSERT INTO PRODUCT VALUES ('SM-18277','1.25-in. metal screw, 25','11/28/96',172,75,6.99,0.00,'21225');
INSERT INTO PRODUCT VALUES ('SW-23116','2.5-in. wd. screw, 50','9/23/96',237,100,8.45,0.00,'21231');
INSERT INTO PRODUCT VALUES ('WR3/TT3','Steel matting, 4''x8''x1/6", .5" mesh','11/16/96',18,5,119.95,0.10,'25595');
INSERT INTO PRODUCT VALUES ('11QER/31','Power painter, 15 psi, 3-nozzle','12/2/96',8,5,109.99,0.00,25595);
INSERT INTO PRODUCT VALUES ('13-Q2/P2','7.25-in. pwr. Saw blade','11/12/96',32,15,14.99,0.05,21344);
INSERT INTO PRODUCT VALUES ('14-Q1/L3','9.00-in. pwr. Saw blade','11/12/96',18,12,17.49,0.00,21344);
INSERT INTO PRODUCT VALUES ('156-QQ2','Hrd. Cloth, 1/4-in., 2x50','8/14/96',15,8,39.95,0.00,23119);
INSERT INTO PRODUCT VALUES ('1558-QW1','Hrd. Cloth, 1/2-in., 3x50','8/14/96',23,5,43.99,0.00,23119);
INSERT INTO PRODUCT VALUES ('2232/QTY','B&D jigsaw, 12-in, blade','10/29/96',8,5,109.92,0.05,24288);
INSERT INTO PRODUCT VALUES ('2232/QWE','B&D jigsaw, 8-in, blade','9/23/96',6,5,99.87,0.05,24288);
INSERT INTO PRODUCT VALUES ('2238/QPD','B&D cordless drill, 1/2-in.','10/19/96',12,5,38.95,0.05,25595);
INSERT INTO PRODUCT VALUES ('23109-HB','Claw hammer','11/19/96',23,10,9.95,0.10,21225);
INSERT INTO PRODUCT VALUES ('23114-AA','Sledge hammer, 12 lb.','12/1/96',8,5,14.40,0.05,null);
INSERT INTO PRODUCT VALUES ('54778-2T','Rat-tail file, 1/8-in. fine','6/14/96',43,20,4.99,0.00,'21344');
INSERT INTO PRODUCT VALUES ('89-WRE-Q','Hicut chain saw, 16 in.','7/6/96',11,5,256.99,0.05,'24288');
INSERT INTO PRODUCT VALUES ('PVC23DAT','PVC pipe, 3.5-in., 8-ft','12/19/96',188,75,5.87,0.00,null);
INSERT INTO PRODUCT VALUES ('SM-18277','1.25-in. metal screw, 25','11/28/96',172,75,6.99,0.00,'21225');
INSERT INTO PRODUCT VALUES ('SW-23116','2.5-in. wd. screw, 50','9/23/96',237,100,8.45,0.00,'21231');
INSERT INTO PRODUCT VALUES ('WR3/TT3','Steel matting, 4''x8''x1/6", .5" mesh','11/16/96',18,5,119.95,0.10,'25595');

现在当我执行以下操作时：

SELECT * FROM PRODUCT;

只返回前 4 列！

我尝试设置以下内容：

SET WRAP ON
SET TERMOUT OFF
SET VERIFY OFF
SET TRIMSPOOL OFF
SET LINESIZE 2000
SET LONG 200000
SET PAGES 0

现在只出现两列。

请帮忙。

【参考方案1】：

如果该列应该是CHAR(200)，那么您应该不理会它——不要仅仅因为您无法正确显示它而将其更改为CHAR(50)。

相反，在查询表时只显示前 50 个字符可能没问题。您可以在查询本身中执行此操作，如下所示：

select p_code, substr(p_descript, 1, 50) as p_descript, p_indate, ...

或者，您可以使用 SQL Plus 命令告诉 SQL Plus 以 50 个字符的宽度显示列 - 您试图这样做，但您没有找到正确的命令。它是column 命令；特别是在这种情况下：

column p_descript format a50

（注意后面没有分号;，因为它不是 SQL 命令）这将包装实际上超过 50 个字符的值。如果您希望截断它们，请发出额外的 SQL Plus 命令：

set wrap off