CREATE INDEX IDX_Users_UserName ON #Users(UserName) [/cc] Even though you can implicitly create a clustered index on a table variable (@table) by defining a primary key or unique constraint, it is generally more efficient to use a temp table. The downside is recompilation, however this ca...
SQL> create table kl_temp (no number, name varchar2(60));Table created.SQL> insert into kl_temp values (15,'TOM');1 row created.SQL> insert into kl_temp values (14,'JON');1 row created.SQL> commit;SQL> alter table kl911_1 exchange partition p2 with table kl_temp;Ta...
MSSQL 2019 standard get error when create index on temp tableZheng Shi 21 Reputation points May 11, 2022, 4:44 PM We have some code try to create a temp table on MSSQL with following: Copy CREATE TABLE #POM_read_expr_scratch2 ( auid VARCHAR(15) collate Latin1_General_BIN, ...
CREATE [ [ GLOBAL | LOCAL ] { TEMPORARY | TEMP } ] TABLE table_name ( { column_name data_type [ DEFAULT default_expr ] [ column_constraint [, ... ] ] | table_constraint | LIKE parent_table [ { INCLUDING | EXCLUDING } DEFAULTS ] } [, ... ] ) [ INHERITS ( parent_table [,...
EXCUTE IMMEDIATE 'SELECT * FROM temp_table WHERE ROWNUM = 1 INTO var1;' 将临时表 SQL 改为动态 SQL 可以绕过这个问题。 故障情况数据未清理 故障情况可能导致数据残留,目前无自动清理办法,一般不影响使用。如果残留数据过多,可以通过 DROP 临时表,再重建解决。 上一篇 CREATE SYNONYM 下一篇 CREATE TABLE...
如果没有指定,将会使用 default_tablespac。或者对临时表上的索引使用 temp_tablespaces。 predicate部分索引的约束表达式。 索引存储参数 可选的WITH子句为索引指定存储参数。每一种索引方法都有自己的存储参数集合。B-树、哈希、GiST 以及 SP-GiST 索引方法都接受这个参数: fillfactor (integer) 索引的填充因子是一个...
If a temporary table is created with a named constraint and the temporary table is created within the scope of a user-defined transaction, only one user at a time can execute the statement that creates the temp table. For example, if a stored procedure creates a temporary table with a name...
Indexes, including indexes on global temp tables, can be created online with the following exceptions: XML index. Index on a local temp table. Initial unique clustered index on a view. Disabled clustered indexes. Clustered index if the underlying table contains LOB data types:image,ntext,...
首先temp-table 生命周期默认是 backend级别,即一个backend内部创建了temp-table之后,backend退出的时候会对当前backend 所创建的所有的temp-table进行清理。 使用很简单,按照temp-table的声明周期,有两种使用方式: 1. Backend粒度 该粒度下如果不指定drop temp table的话默认 drop的时机是在 backend 退出的时候。
CREATE [ UNIQUE ] INDEX [ CONCURRENTLY ] [ [ IF NOT EXISTS ] name ] ON [ ONLY ] table_name [ USING method ] ( { column_name | ( expression ) } [ COLLATE collation ] [ opclass [ ( opclass_parameter = value [, ... ] ) ] ] [ ASC | DESC ] [ NULLS { FIRST | LAST } ...