SELECT IN_INSTYPE || SEQ_CMP_DELIVERY_CAR_BAT.NEXTVAL
时间: 2023-08-22 17:04:18 浏览: 124
抱歉,这似乎不是一个完整的问题。这是一个SQL语句的一部分,它使用了Oracle数据库的序列功能来为表中的每个行生成唯一的值。具体来说,它将IN_INSTYPE和SEQ_CMP_DELIVERY_CAR_BAT.NEXTVAL连接在一起,以创建一个新的值。如果您有任何关于SQL或Oracle数据库的问题,请随时向我提问。
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SELECT '155427848241370' || SEQ_KD_INDEX.nextval || 'GJ', a.PROBABLECAUSE, ( SELECT zhFUNc_GETNEWIDFORCIR ( id ) FROM gistar.tdn_switch ch WHERE ch.ipaddress = a.IP AND ROWNUM = 1 ), '1028200001', ( SELECT name FROM gistar.tdn_switch ch WHERE ch.ipaddress = a.IP AND ROWNUM = 1 ), ( SELECT code FROM gistar.tdn_switch ch WHERE ch.ipaddress = a.IP AND ROWNUM = 1 ), a.IP, a.ALARMTIME, a.alarmtext, SYSDATE, NULL, a.alarmid, a.createtime, a.perceivedseverity, a.moname FROM ( SELECT x.*, ( SELECT COUNT( DISTINCT re.coveraddressid ) FROM gistar.jr_customer_record @yjyx_zy re WHERE re.project_type IN ( 'FTTH宽带' ) AND re.oltip = x.IP ) AS oltcount FROM gistar.t_trouble_alarminfo x ) a WHERE a.specialty = 'PON' AND a.motype = 'OLT' AND IP IS NOT NULL AND a.PROBABLECAUSE = 'OLT网管脱网' AND ( SELECT substr( b.tt_number, 0, 2 ) FROM fwbz.t_trouble_ticket_new @GDOSSDB_SGDD b WHERE a.tt_id = b.tt_id ) = 'NM' AND ( SELECT title FROM fwbz.t_trouble_ticket_new @GDOSSDB_SGDD b WHERE a.tt_id = b.tt_id ) = 'OLT网管脱网' AND ( ( SYSDATE < '2021-05-01' AND a.oltcount >= 600 ) OR a.oltcount >= 400 ) UNION ALL SELECT '155427848241370' || SEQ_KD_INDEX.nextval || 'GJ', a.PROBABLECAUSE, ( SELECT zhFUNc_GETNEWIDFORCIR ( id ) FROM gistar.tdn_switch ch WHERE ch.ipaddress = a.IP AND ROWNUM = 1 ), '1028200001', ( SELECT name FROM gistar.tdn_switch ch WHERE ch.ipaddress = a.IP AND ROWNUM = 1 ), ( SELECT code FROM gistar.tdn_switch ch WHERE ch.ipaddress = a.IP AND ROWNUM = 1 ), a.IP, a.ALARMTIME, a.alarmtext, SYSDATE, a.cleartime, a.alarmid, a.createtime, a.perceivedseverity, a.moname FROM ( SELECT x.*, ( SELECT COUNT( DISTINCT re.coveraddressid ) FROM gistar.jr_customer_record @yjyx_zy re WHERE re.project_type IN ( 'FTTH宽带' ) AND re.oltip = x.IP ) AS oltcount FROM gistar.t_trouble_alarminfo x ) a WHERE a.specialty = 'PON' AND a.motype = 'OLT' AND IP IS NOT NULL AND a.PROBABLECAUSE = 'OLT网管脱网' AND ( SELECT substr( b.tt_number, 0, 2 ) FROM fwbz.t_trouble_ticket_new @GDOSSDB_SGDD b WHERE a.tt_id = b.tt_id ) = 'NM' AND ( SELECT title FROM fwbz.t_trouble_ticket_new @GDOSSDB_SGDD b WHERE a.tt_id = b.tt_id ) = 'OLT网管脱网' AND ( ( SYSDATE < '2021-05-01' AND a.oltcount >= 600 ) OR a.oltcount >= 400 ) AND a.cleartime IS NOT NULL AND a.alarmid IN ( SELECT alarm_id FROM olt_ALARM_BILL GROUP BY alarm_id, device_ip, alarm_time, create_time HAVING count( * ) = 1 );报错ORA-02287: sequence number not allowed here
这个 SQL 语句中使用了 SEQ_KD_INDEX.nextval,而在 SELECT 语句中不能直接使用序列的 nextval() 方法,因为 nextval() 方法不是一个常量或字面值,而是一个函数,因此不能在字符串中直接使用。要解决这个问题,可以将 nextval() 放在一个子查询中,然后在 SELECT 语句中引用该子查询的结果。例如,可以将第一个 SELECT 语句修改如下:
```
SELECT '155427848241370' || (SELECT SEQ_KD_INDEX.nextval FROM dual) || 'GJ', a.PROBABLECAUSE, ...
```
这样就可以在字符串中引用 nextval() 方法的返回值了。注意,这里使用了 Oracle 中的 dual 表来执行子查询,因为在 Oracle 中,必须使用 FROM 子句来指定一个表,即使这个表只包含一行数据也是如此。
在mybatis中怎么将 SELECT nextval('cust1.cloud_service_manager_id_seq'::regclass)其中的cust1,cloudservice_manageer,_id_seq变成三个动态的参数
在MyBatis中可以使用动态SQL语句来实现将SELECT nextval('cust1.cloud_service_manager_id_seq'::regclass)语句中的cust1、cloud_service_manager、_id_seq三个参数动态传入的操作。具体实现步骤如下:
1. 在Mapper.xml文件中定义一个select语句,使用#{}占位符代替动态传入的参数,如下所示:
```
<select id="getNextVal" resultType="java.lang.Long">
SELECT nextval(#{schema}.#{tableName}_#{columnName}_seq'::regclass)
</select>
```
2. 在Java代码中调用MyBatis的SqlSession对象的selectOne()方法执行该select语句,并传入三个参数,如下所示:
```
String schema = "cust1";
String tableName = "cloud_service_manager";
String columnName = "id";
Long nextVal = sqlSession.selectOne("getNextVal",
ImmutableMap.of("schema", schema,
"tableName", tableName,
"columnName", columnName));
```
在这里使用了Google的Guava库中的ImmutableMap来封装参数,这样可以避免在代码中直接使用Map对象带来的类型不安全和可变性带来的风险。
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