Transact-SQL syntax conventions Syntax Syntax for SQL Server (all options except filegroup and filestream apply to Azure SQL Database). syntaxsql DROPINDEX[IFEXISTS] {<drop_relational_or_xml_or_spatial_index>[ , ...n ] |<drop_backward_compatible_index>[ , ...n ] }<drop_relational_or_...
syntaxsql DROPINDEXindex_nameON{database_name.schema_name.table_name|schema_name.table_name|table_name} [ ; ] 参数 IF EXISTS 适用于:SQL Server 2016 (13.x) 及更高版本。 仅当索引已存在时对其进行有条件地删除。 index_name 要删除的索引的名称。
Transact-SQL Syntax Conventions Syntax Copy DROP INDEX { <drop_relational_or_xml_index> [ ,...n ] | <drop_backward_compatible_index> [ ,...n ] } <drop_relational_or_xml_index> ::= index_name ON [ WITH ( <drop_clustered_index_option> [ ,...n ] ) ] <drop_backward_compatible...
CREATE INDEX 語法 (SQL CREATE INDEX Syntax) CREATEINDEXindex_nameONtable_name (column_name); 建立多欄位索引 (Multiple-Column Index) CREATEINDEXindex_nameONtable_name (column_name1, column_name2...); 什麼時候建立多欄位索引比較合適?如果您常對一張資料表查詢WHERE column_name1='xxx' AND colum...
syntaxsql Copiar DROP INDEX index_name ON [ WITH ( <drop_index_option> [ ,...n ] ) ] ::= { database_name.schema_name.table_or_view_name | schema_name.table_or_view_name | table_or_view_name } <drop_index_option> ::= { MAXDOP = max_degree_of_parallelism | ONLINE...
Transact-SQL Syntax Conventions Syntax Copy DROP INDEX { <drop_relational_or_xml_or_spatial_index> [ ,...n ] | <drop_backward_compatible_index> [ ,...n ] } <drop_relational_or_xml_or_spatial_index> ::= index_name ON [ WITH ( <drop_clustered_index_option> [ ,...n ] ) ] ...
Azure SQL 受控執行個體 卸除SQL Server 中現有的選擇性 XML 索引或次要選擇性 XML 索引。 如需詳細資訊,請參閱選擇性 XML 索引 (SXI)。 Transact-SQL 語法慣例 語法 syntaxsql DROPINDEXindex_nameON[WITH(<drop_index_option>[ ,...n ] ) ]::={database_name.schema_name.table_or_view_name|schema_...
DROP INDEX 语句用于删除表中的索引。 用于MySQL的 DROP INDEX 语法 代码语言:javascript 代码运行次数:0 运行 AI代码解释 ALTERTABLEtable_nameDROPINDEXindex_name; 数据库实例 代码语言:javascript 代码运行次数:0 运行 AI代码解释 ALTERTABLEstudentDROPINDEXindex_name; ...
Print Syntax error in DROP INDEX statement. (Error 3294) Article 06/14/2014 You entered an SQL statement that has an invalid DROP INDEX statement. Possible causes: A reserved word or argument name is misspelled or missing. Punctuation is incorrect....
Syntax error in DROP TABLE or DROP INDEX. (Error 3295)Article 06/14/2014 Expand table You entered an SQL statement that has an invalid DROP statement. Possible causes: A reserved word or argument name is misspelled or missing. Punctuation is incorrect....