Refresh Refreshes the Index object and its properties. (覆盖 ScriptNameObjectBase. . :: . .Refresh() () () ()。) Rename Renames the index. RenameImpl This method supports the SMO infrastructure and is not intended to be used directly from your code. (从 NamedSmoObject 继承。) RenameImp...
En radgrupp där all data har tagits bort övergår från KOMPRIMERAD till TOMBSTONE och tas senare bort av en bakgrundsprocess som heter tuple-mover. Mer information om status för radgrupper finns i sys.dm_db_column_store_row_group_physical_stats (Transact-SQL). Tips Om du har...
The following table lists the index operations and disallowed index types. Expand table Using the keyword ALL with this operationFails if the table has one or more REBUILD WITH ONLINE = ON XML indexSpatial indexColumnstore index in SQL Server 2017 (14.x) and older versions only. Later ...
The following table lists the index operations and disallowed index types. Išplėsti lentelę Using the keyword ALL with this operationFails if the table has one or more REBUILD WITH ONLINE = ON XML indexSpatial indexColumnstore index in SQL Server 2017 (14.x) and older versions only....
Here’s how to create different types of indexes, along with specifying index columns and names: 1 2 CREATE [UNIQUE] INDEX index_name ON table_name (column1 [, column2, ...]); Explanations: –CREATE INDEX: Initiates the creation of an index. –UNIQUE (optional): Specifies that the ...
Covering indexes are the designation for a nonclustered index that resolves one or several similar query results directly with no access to its base table, and without incurring in lookups. Such indexes have all the necessary non-SARGable columns in its leaf level. This means that the columns ...
For example, in the following table, the index entry for a given t1 row includes the full col1 value and a prefix of the col2 value consisting of its first 10 characters: CREATE TABLE t1 ( col1 VARCHAR(10), col2 VARCHAR(20), INDEX (col1, col2(10)) ); MySQL 8.0.13 and ...
addAttributeToGroup(String, String) - Method in class com.endeca.portal.explore.model.UnivariateSortAndGroupAnalysis addAttrValue(String) - Method in class com.endeca.portal.compare.model.CompareGridRecordModel addBinningSelect(List<Select>, String) - Static method in class com.endeca.portal.explore...
It is not an error to name the same index in several hints (even within the same hint): SELECT*FROMt1USEINDEX(i1)USEINDEX(i1,i1); However, it is an error to mixUSE INDEXandFORCE INDEXfor the same table: SELECT*FROMt1USEINDEXFORJOIN(i1)FORCEINDEXFORJOIN(i2); ...
Learn about MySQL SUBSTRING and SUBSTRING_INDEX functions and its usage with multiple examples in this tutorial.