标签：generate ide meta sql 基本 hat orm lag ora
1.如何查看sequence的定义
2.dba_sequences相关字的定义
3.如何修改sequence
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1.如何查看sequence的定义
SQL>SELECT DBMS_METADATA.GET_DDL(‘SEQUENCE‘,‘SEQ_SMECUSTPERIODINFO‘,‘CLMS01‘) FROM DUAL;
CREATE SEQUENCE "CLMS01"."SEQ_SMECUSTPERIODINFO" MINVALUE 1 MAXVALUE 999999
9999 INCREMENT BY 1 START WITH 8798675575 CACHE 20 ORDER NOCYCLE --START WITH 8798675575 此值为dba_sequneces中的LAST_NUMBER，比较奇怪！！
2.dba_sequences相关字的定义
| Column | Datatype | NULL | Description |
|---|---|---|---|
SEQUENCE_OWNER |
VARCHAR2(30) |
NOT NULL |
Owner of the sequence |
SEQUENCE_NAME |
VARCHAR2(30) |
NOT NULL |
Sequence name |
MIN_VALUE |
NUMBER |
Minimum value of the sequence | |
MAX_VALUE |
NUMBER |
Maximum value of the sequence | |
INCREMENT_BY |
NUMBER |
NOT NULL |
Value by which sequence is incremented |
CYCLE_FLAG |
VARCHAR2(1) |
Indicates whether the sequence wraps around on reaching the limit (Y) or not (N) |
|
ORDER_FLAG |
VARCHAR2(1) |
Indicates whether sequence numbers are generated in order (Y) or not (N) |
|
CACHE_SIZE |
NUMBER |
NOT NULL |
Number of sequence numbers to cache |
LAST_NUMBER |
NUMBER |
NOT NULL |
Last sequence number written to disk. If a sequence uses caching, the number written to disk is the last number placed in the sequence cache. This number is likely to be greater than the last sequence number that was used. |
3.如何修改sequence
标签：generate ide meta sql 基本 hat orm lag ora
原文地址：https://www.cnblogs.com/dayu-liu/p/8794727.html
