syntaxsql CREATESEQUENCE[schema_name. ]sequence_name[AS[built_in_integer_type| user-defined_integer_type] ] [STARTWITH<constant>] [INCREMENTBY<constant>] [ {MINVALUE[<constant>] } | {NOMINVALUE} ] [ {MAXVALUE[<constant>] } | {NOMAXVALUE} ] [CYCLE| {NOCYCLE} ] [ {CACHE[<constant...
创建序列后,您可以在 SQL 语句中使用CURRVAL伪列返回序列当前值或使用NEXTVAL伪列返回递增的新值。详细信息,请参见序列伪列。 语法 CREATESEQUENCE[schema.]sequence_name {STARTWITHint_value|[INCREMENTBYint_value]|[MINVALUE int_value|NOMINVALUE]|[MAXVALUE int_value|NOMAXVALUE]|[CACHE int_value|NOCACHE]...
SQL CREATESEQUENCETest.CountBy1STARTWITH1INCREMENTBY1; GO B. 建立以 1 遞減的順序 下列範例會從 0 開始,並且每次使用時遞減一。 SQL CREATESEQUENCETest.CountByNeg1STARTWITH0INCREMENTBY-1; GO C. 建立以 5 遞增的順序 下列範例會建立每次使用時遞增 5 的順序。
我们回到ClientPreparedStatement.executeQuery创建sendPacket地方看,此时通过((PreparedQuery<?>) this.query).fillSendPacket();拿到的Message对象是null,然后进一步追踪到最后向 MySQL 发送请求的地方NativeSession.execSQL: public<TextendsResultset>TexecSQL(QuerycallingQuery,Stringquery,intmaxRows,NativePacketPayloadpacket...
syntaxsql Copia CREATE SEQUENCE [schema_name . ] sequence_name [ AS [ built_in_integer_type | user-defined_integer_type ] ] [ START WITH <constant> ] [ INCREMENT BY <constant> ] [ { MINVALUE [ <constant> ] } | { NO MINVALUE } ] [ { MAXVALUE [ <constant> ] } | { NO ...
For information about sequences, query sys.sequences. Security Permissions Requires CREATE SEQUENCE, ALTER, or CONTROL permission on the SCHEMA. Members of the db_owner and db_ddladmin fixed database roles can create, alter, and drop sequence objects. Members of the db_owner and db_datawriter...
For information about sequences, query sys.sequences.SecurityPermissionsRequires CREATE SEQUENCE, ALTER, or CONTROL permission on the SCHEMA.Members of the db_owner and db_ddladmin fixed database roles can create, alter, and drop sequence objects. Members of the db_owner and db_datawriter fixed...
説明の対象: CREATE SEQUENCE シーケンス名 シーケンスを指定します。 名前(暗黙的または明示的な修飾子を含む)は、 Db2 によって生成されるシーケンス名を含め、現在のサーバーに存在するシーケンスを特定するものであってはなりません。 スキーマ名が「SYSADM」の場合を除き、「SYS」で始まる...
Transact-SQL Syntax Conventions Syntax Copy CREATE SEQUENCE [schema_name . ] sequence_name [ AS [ built_in_integer_type | user-defined_integer_type ] ] [ START WITH <constant> ] [ INCREMENT BY <constant> ] [ { MINVALUE [ <constant> ] } | { NO MINVALUE } ] ...
CREATE SEQUENCE seq; Query OK, 0 rows affected (0.06 sec) 使用NEXTVAL() 函数获取序列对象的下一个值。 SELECT NEXTVAL(seq); +---+ | NEXTVAL(seq) | +---+ | 1 | +---+ 1 row in set (0.02 sec) 使用LASTVAL() 函数获取本会话上一次调用序列对象所产生的值。 SELECT LASTVAL(seq...