我知道我的问题类似于这个问题：UPDATE on INSERT duplicate primary key in Oracle?
实际上是精确的副本。
我是Spring框架的新手。所以这是我的第一次尝试。我试过了很多例子，但却惨遭失败。
所以这就是事情。
我的源和目标是相同的。我想要的是更新记录，如果它在Db中否则插入。
我使用以下方法。我的插入查询工作正常。但是当我使用MERGE时。我收到了错误。
public void insertAllPointss(final List<AllPoints> allpoints) {
// String sql = "INSERT INTO myTable " +
// "(WIFI_SEQ_NO, my_urlL, street_number, house_number, street_name, last_update) VALUES (seq_w.NEXTVAL, ?, ?, ?, ?, ?) ";
String sql = "MERGE INTO myTable M" +
" USING (SELECT ? AS my_urlL, ? AS street_number, ? AS house_number,? AS street_name, ? AS last_update FROM dual) N"+
" ON (M.street_number = N.street_number AND M.house_number = N.house_number AND M.street_name = N.street_name)"+
" WHEN MATCHED THEN UPDATE SET M.last_update = N.last_update"+
" WHEN NOT MATCHED THEN INSERT(WIFI_SEQ_NO, my_urlL, street_number, house_number, street_name, last_update)"+
" VALUES(seq_w.NEXTVAL, N.my_urlL, N.street_number, N.house_number, N.street_name, N.last_update)";
getJdbcTemplate().batchUpdate(sql, new BatchPreparedStatementSetter() {
Calendar calendar = Calendar.getInstance();
java.sql.Date ourJavaDateObject = new java.sql.Date(calendar.getTime().getTime());
@Override
public void setValues(PreparedStatement ps, int i) throws SQLException {
AllPoints allpoints = AllPointss.get(i);
ps.setString(1, AllPoints.getWebsite());
ps.setDouble(2, allpoints.getStreetNumber());
ps.setDouble(3, allpoints.getHouseNumber());
ps.setString(4, allpoints.getStreetName());
ps.setDate(5, ourJavaDateObject);
}
@Override
public int getBatchSize() {
return AllPointss.size();
}
});
}
以下是我的日志文件
[7/18/17 8:24:00:952 CST] 00000043 com.ibm.ws.rsadapter.spi.DatabaseHelper I DSRA8203I: Database product name : H2
[7/18/17 8:24:00:952 CST] 00000042 com.ibm.ws.rsadapter.spi.DatabaseHelper I DSRA8203I: Database product name : H2
[7/18/17 8:24:00:952 CST] 00000043 com.ibm.ws.rsadapter.spi.DatabaseHelper I DSRA8204I: Database product version : 1.4.195 (2017-04-23)
[7/18/17 8:24:00:952 CST] 00000042 com.ibm.ws.rsadapter.spi.DatabaseHelper I DSRA8204I: Database product version : 1.4.195 (2017-04-23)
[7/18/17 8:24:00:952 CST] 00000043 com.ibm.ws.rsadapter.spi.DatabaseHelper I DSRA8205I: JDBC driver name : H2 JDBC Driver
[7/18/17 8:24:00:952 CST] 00000042 com.ibm.ws.rsadapter.spi.DatabaseHelper I DSRA8205I: JDBC driver name : H2 JDBC Driver
[7/18/17 8:24:00:952 CST] 00000043 com.ibm.ws.rsadapter.spi.DatabaseHelper I DSRA8206I: JDBC driver version : 1.4.195 (2017-04-23)
[7/18/17 8:24:00:952 CST] 00000042 com.ibm.ws.rsadapter.spi.DatabaseHelper I DSRA8206I: JDBC driver version : 1.4.195 (2017-04-23)
[7/18/17 8:24:01:108 CST] 00000042 SystemErr R Exception in thread "SimpleAsyncTaskExecutor-1"
[7/18/17 8:24:01:108 CST] 00000043 SystemErr R Exception in thread "SimpleAsyncTaskExecutor-2"
[7/18/17 8:24:01:108 CST] 00000043 SystemErr R org.springframework.jdbc.BadSqlGrammarException: PreparedStatementCallback; bad SQL grammar [MERGE INTO myTable M USING (SELECT ? AS my_urlL, ? AS street_number, ? AS house_number,? AS street_name, ? AS last_update FROM dual) N ON (M.street_number = N.street_number AND M.house_number = N.house_number AND M.street_name = N.street_name) WHEN MATCHED THEN UPDATE SET M.last_update = N.last_update WHEN NOT MATCHED THEN INSERT(WIFI_SEQ_NO, my_urlL, street_number, house_number, street_name, last_update) VALUES(seq_w.NEXTVAL, N.my_urlL, N.street_number, N.house_number, N.street_name, N.last_update)
我觉得我的MERGE SQL STATEMENT有问题，我正在寻找一些帮助/指导
答案 0 :(得分：1)
使用正确的语法：
MERGE INTO people AS t
USING (
VALUES (5, 'Chuck', 'Norris'),
(6, 'John', 'Smith'),
(7, 'Abraham', 'Lincoln')
-- maybe more rows
) AS s (id, name, surname)
ON t.id = s.id
WHEN MATCHED THEN
UPDATE SET t.name=s.name, t.surname=s.surname
WHEN NOT MATCHED THEN
INSERT (id, name, surname)
VALUES (s.id, s.name, s.surname)