是否有任何Oracle函数表明存在记录或任何其他有用的技术来实现这一目标?
编辑:使用我做的MERGE语句:
MERGE
INTO lims_min.mytab src
USING lims_min.mytab tgt
ON ( src.col1 = tgt.col1
AND tgt.col1 = p_val1
AND src.col2 = tgt.col2
AND tgt.col2 = p_val2
)
WHEN MATCHED
THEN
UPDATE
SET tgt.col3=p_val3,
tgt.col4=p_val4
WHEN NOT MATCHED
THEN
INSERT (col1, col2, col3, col4)
VALUES (val1, val2, val2, val4);
我收到错误消息,指出col3是无效的标识符。没有拼写错误,它是现有的column.p_val1,p_val2,p_val3和p_val4是传递给存储过程的字符串参数。我认为问题可能在于这些参数,也许它们应该放在WHERE语句中? 有什么想法吗?
答案 0 :(得分:4)
您正在Oracle中寻找merge
。
MERGE
INTO target_table tgt
USING source_table src
ON ( src.object_id = tgt.object_id ) //The key to check if the record exists
WHEN MATCHED // if exists
THEN
UPDATE
SET tgt.object_name = src.object_name //update it
, tgt.object_type = src.object_type
WHEN NOT MATCHED // if not exists
THEN
INSERT ( tgt.object_id //then insert
, tgt.object_name
, tgt.object_type )
VALUES ( src.object_id
, src.object_name
, src.object_type );
答案 1 :(得分:3)
查看MERGE语句