CREATE [ UNIQUE ] [ CLUSTERED | NONCLUSTERED ] INDEX index_name ON { table | view } ( column [ ASC | DESC ] [ ,...n ] ) [ WITH < index_option > [ ,...n] ] [ ON filegroup ] < index_option > ::= { PAD_INDEX | FILLFACTOR = fillfactor | IGNORE_DUP_KEY | DROP_EXISTING...
ALTER TABLE Adds a new field or constraint to an existing table (a constraint creates an index on a field or group of fields) DROP TABLE Deletes a table from a database CREATE INDEX Creates an index for a field or group of fields DROP INDEX Removes an index from a field or...
CREATE TABLE语句用于在Lindorm宽表引擎或时序引擎中创建表,支持多种数据类型,例如VARCHAR、TIMESTAMP、BIGINT等;支持多种表属性,例如数据有效期TTL、压缩算法COMPRESSION等。您可以灵活搭配各种表属性和数据类型,设计出更贴合业务场景的表。 引擎与版本 CREATE TABLE适用于宽表引擎和时序引擎。 时序引擎自3.4.32版本开始支...
III- 索引表(Associative Array) TYPE population_type IS TABLE OF NUMBER INDEX BY VARCHAR2 ( 64 ); 1. 2. -- 下标是 varchar2 ,值是 number 的数组 特征:可使用不连续数字、负数、字符作为下标,长度大小可变 在创建数组时便分配内存,无需之后申请 index by 只能跟BINARY_INTEGER、PLS_INTEGER、VARCHAR2...
与ON 和 TEXTIMAGE_ON 一样,使用 CREATE TABLE 设置的 FILESTREAM_ON 值无法更改,但以下情况除外: CREATE INDEX 语句将堆转换为聚集索引。在这种情况下,可以指定不同的 FILESTREAM 文件组、分区方案或 NULL。 DROP INDEX 语句将聚集索引转换为堆。在这种情况下,可以指定不同的 FILESTREAM 文件组、分区方案或 "defa...
[ WITH ( <index_option> [ ,... n ] ) ] [ ON { partition_scheme_name ( column_name ) | filegroup_name | default } ] [ FILESTREAM_ON { filestream_filegroup_name | partition_scheme_name | "NULL" } ] } <table_option> ::= { [ DATA_COMPRESSION = { NONE | ROW | PAGE } [ ...
[ WITH ( <index_option> [ ,... n ] ) ] [ ON { partition_scheme_name ( column_name ) | filegroup_name | default } ] [ FILESTREAM_ON { filestream_filegroup_name | partition_scheme_name | "NULL" } ] } <table_option> ::= { [ DATA_COMPRESSION = { NONE | ROW | PAGE } [ ...
table_name | table_name } ( { <column_definition> | [ <table_constraint> ] [ ,... n ] | [ <table_index> ] [ ,... n ] } [ PERIOD FOR SYSTEM_TIME ( system_start_time_column_name , system_end_time_column_name ) ] ) [ WITH ( <table_option> [ ,... n ] ) ] [ ;...
Click theTable of Contentstab, and then click theOptionsbutton. Click to select theTable entry fieldscheck box. Click OK twice. The table of contents is inserted at the location of the insertion point. How to create index entry (XE) fields ...
Click theTable of Contentstab, and then click theOptionsbutton. Click to select theTable entry fieldscheck box. Click OK twice. The table of contents is inserted at the location of the insertion point. How to create index entry (XE) fields ...