0x08 Blob Page. Blobs have their own storage within the database. Very large blobs will require a sequence of pages and the type 8 page holds blob data. 0x09 Generator Page. Holds an array of 64 bit generators written back to disc. pag_scn Four bytes, unsigned. Bytes 0x08 - 0x0b. Originally used as the sequence number in the Write Ahead Log, but WAL is no longer used. The field was converted to be the SCN hdr_oldest_transaction; SLONG hdr_oldest_active; SLONG hdr_next_transaction; USHORT hdr_sequence; USHORT hdr_flags; SLONG hdr_creation_date[2]; SLONG hdr_attachment_id; SLONG hdr_shadow_count;

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 3.5.4. Collation Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 231 5.14. SEQUENCE (GENERATOR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 232 5.14.1. CREATE SEQUENCE . . . . . 14.2. ALTER SEQUENCE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 234 5.14.3. CREATE OR ALTER SEQUENCE . . . . . .

......................... 219 SEQUENCE (GENERATOR) ................................................................................................. 219 CREATE SEQUENCE .............................. .................................................................................... 220 ALTER SEQUENCE ............................................................................................... .......................................................................... 222 CREATE OR ALTER SEQUENCE ................................................................................ 222 Примеры ..

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 3.5.4. Collation Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 166 5.11. SEQUENCE (GENERATOR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 167 5.11.1. CREATE SEQUENCE (GENERATOR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 167 5.11.2. ALTER SEQUENCE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Vitess also supports sequence generators that can be used to generate new ids that work like MySQL auto increment columns. The VSchema allows you to associate table columns to sequence tables. If no value value is specified for such a column, then VTGate will know to use the sequence table to generate a new value for it. VStream VStream is a change notification system located on the VTGate. The VStream can well in a sharded setup. Instead, Vitess provides an equivalent feature through sequences. The sequence table is an unsharded single row table that Vitess can use to generate monotonically increasing

Vitess also supports sequence generators that can be used to generate new ids that work like MySQL auto increment columns. The VSchema allows you to associate table columns to sequence tables. If no value value is specified for such a column, then VTGate will know to use the sequence table to generate a new value for it. VStream VStream is a change notification service accessible via VTGate. The purpose of MySQL scalability challenges that the team at YouTube faced. This section briefly summarizes the sequence of events that led to Vitess’ creation: 1. YouTube’s MySQL database reached a point when peak traffic

Vitess also supports sequence generators that can be used to generate new ids that work like MySQL auto increment columns. The VSchema allows you to associate table columns to sequence tables. If no value value is specified for such a column, then VTGate will know to use the sequence table to generate a new value for it. VStream VStream is a change notification service accessible via VTGate. The purpose of MySQL scalability challenges that the team at YouTube faced. This section briefly summarizes the sequence of events that led to Vitess’ creation: 1. YouTube’s MySQL database reached a point when peak traffic

PROCEDURE DROP PROCEDURE RECREATE PROCEDURE SEQUENCE или GENERATOR CREATE SEQUENCE CREATE GENERATOR ALTER SEQUENCE SET GENERATOR DROP SEQUENCE DROP GENERATOR TABLE 3 Руководство по языку OVERLAY PAD PI PLACING POWER PRESERVE RAND REPLACE RESTART RETURNING REVERSE ROUND RPAD SCALAR_ARRAY SEQUENCE SIGN SIN SINH SKIP SOURCE SPACE SQRT SUBSTRING TAN TANH TEMPORARY TRUNC TWO_PHASE WEEK UPDATING COLLATION | DOMAIN | EXCEPTION | EXTERNAL FUNCTION | FILTER | GENERATOR | INDEX | PROCEDURE | ROLE | SEQUENCE | TABLE | TRIGGER | VIEW Замечание Если Вы вводите пустой комментарий (''), то он будет сохранён

Functions and Operators.................................................................176 9.12. Sequence Manipulation Functions ........................................................................ ......................................................................................741 ALTER SEQUENCE................................................................................................ .....................................................................................826 CREATE SEQUENCE ...............................................................................................

Functions and Operators.................................................................177 9.12. Sequence Manipulation Functions ........................................................................ ......................................................................................745 ALTER SEQUENCE................................................................................................ .....................................................................................831 CREATE SEQUENCE ...............................................................................................