我是 Oracle 和 PL/SQL 的新手;我在选择几个变量时遇到了一些问题。我要做的是在一个表(SA_SPECIFICATION_DETAILS)中搜索多个项目,并将它们连接到另一个表(SA_ASSET)中的一个字段中。SA_SPECIFICATION_DETAILS 表为每个 SA_ASSET.ASSET_ID 保存多行属性。我已经为此工作了几天,并且不断遇到一些错误。这是我的示例代码:
DECLARE
manuf VARCHAR(50);
mods VARCHAR(50);
mvs VARCHAR(50);
yeara VARCHAR(4);
assid VARCHAR(50):= &assid;
BEGIN
SELECT TRIM(ATTRIBUTE_VALUE) INTO manuf
FROM
SA_SPECIFICATION_DETAILS d,
SA_ASSET a
WHERE
d.SPECIFICATION_NO = a.SPECIFICATION_NO
AND d.ATTRIBUTE_DESC = 'MANUFACTURER'
AND ASSET_ID = assid;
SELECT TRIM(ATTRIBUTE_VALUE) INTO mods
FROM
SA_SPECIFICATION_DETAILS d,
SA_ASSET a
WHERE
d.SPECIFICATION_NO = a.SPECIFICATION_NO
AND d.ATTRIBUTE_DESC = 'MODEL'
AND ASSET_ID = assid;
SELECT TRIM(ATTRIBUTE_VALUE) INTO mvs
FROM
SA_SPECIFICATION_DETAILS d,
SA_ASSET a
WHERE
d.SPECIFICATION_NO = a.SPECIFICATION_NO
AND d.ATTRIBUTE_DESC = 'MAIN VALVE SIZE'
AND ASSET_ID = assid;
SELECT TRIM(ATTRIBUTE_VALUE) INTO yeara
FROM
SA_SPECIFICATION_DETAILS d,
SA_ASSET a
WHERE
d.SPECIFICATION_NO = a.SPECIFICATION_NO
AND d.ATTRIBUTE_DESC = 'YEAR MANUFACTURED'
AND ASSET_ID = assid;
dbms_output.ENABLE(buffer_size => NULL);
DBMS_OUTPUT.PUT_LINE ('Variables:');
dbms_output.put_line (manuf);
dbms_output.put_line (mods);
dbms_output.put_line (mvs);
dbms_output.put_line (yeara);
dbms_output.put_line (assid);
END;
BEGIN
UPDATE
SA_ASSET
SET
ASSET_DESC = TRIM(ATTRIBUTE1)
|| ' - Service Type: PW, Manf: '
|| manuf
|| ', Model: '
|| mods
|| ', Main Valve Size: '
|| mvs
|| ', Year Manf: '
|| yearm
|| ', Location: '
|| TRIM(SA_ASSET.STREET_NUMBER_CHAR)
|| ' '
|| TRIM(SA_ASSET.STREET_NAME)
WHERE
ASSET_TYPE = 'HYDRANT'
AND ASSET_STATUS = 'ACTIVE'
AND UPPER(ASSET_DESC) NOT LIKE '%LOCATION:%'
AND UPPER(ASSET_DESC) NOT LIKE '%HYDRANT%'
AND SA_ASSET.ASSET_ID = assid
END;
我已经对此进行了测试,但它失败了:错误报告:ORA-06550:第 73 行,第 1 列:PLS-00103:遇到符号“BEGIN” ORA-06550:第 96 行,第 1 列:PLS-00103:遇到符号预期以下情况之一时的“END”:
所以我注释掉了更新部分并尝试了这个:
declare
manuf sa_specification_details.attribute_value%type;
mods sa_specification_details.attribute_value%type;
mvs sa_specification_details.attribute_value%type;
yeara sa_specification_details.attribute_value%type;
assid varchar2(15):= &assid;
--dbms_output.ENABLE(buffer_size => NULL);
BEGIN
SELECT ATTRIBUTE_VALUE INTO manuf
FROM
SA_SPECIFICATION_DETAILS d,
SA_ASSET a
WHERE
d.SPECIFICATION_NO = a.SPECIFICATION_NO
AND d.ATTRIBUTE_DESC = 'MANUFACTURER'
AND ASSET_ID = assid;
dbms_output.put_line (manuf);
SELECT ATTRIBUTE_VALUE INTO mods
FROM
SA_SPECIFICATION_DETAILS d,
SA_ASSET a
WHERE
d.SPECIFICATION_NO = a.SPECIFICATION_NO
AND d.ATTRIBUTE_DESC = 'MODEL'
AND ASSET_ID = assid;
dbms_output.put_line (mods);
SELECT ATTRIBUTE_VALUE INTO mvs
FROM
SA_SPECIFICATION_DETAILS d,
SA_ASSET a
WHERE
d.SPECIFICATION_NO = a.SPECIFICATION_NO
AND d.ATTRIBUTE_DESC = 'MAIN VALVE SIZE'
AND ASSET_ID = assid;
dbms_output.put_line (mvs);
SELECT ATTRIBUTE_VALUE INTO yeara
FROM
SA_SPECIFICATION_DETAILS d,
SA_ASSET a
WHERE
d.SPECIFICATION_NO = a.SPECIFICATION_NO
AND d.ATTRIBUTE_DESC = 'YEAR MANUFACTURED'
AND ASSET_ID = assid;
dbms_output.put_line (yeara);
SYS.dbms_output.ENABLE;
DBMS_OUTPUT.PUT_LINE ('Variables:');
dbms_output.put_line (manuf);
dbms_output.put_line (mods);
dbms_output.put_line (mvs);
dbms_output.put_line (yeara);
dbms_output.put_line (assid);
END;
这让我得到了错误:错误报告:ORA-01403:未找到数据 ORA-06512:在第 11 行 01403。00000 - “未找到数据” *原因:
*操作:
所以我在没有选择的情况下运行了查询:
SELECT
ATTRIBUTE_VALUE
FROM
SA_SPECIFICATION_DETAILS d,
SA_ASSET a
WHERE
d.SPECIFICATION_NO = a.SPECIFICATION_NO
AND d.attribute_desc = 'MANUFACTURER'
AND asset_id = '001722';
它返回单行/单列(又名它有效)。那么我做错了什么?我已经声明了变量,我已经让选择正确运行,但它没有传递变量(我可以告诉 - 没有 dbms_output.put_line (manuf); 工作)。我是完全接近还是走错了路?