You cannot create a non-clustered index on a table variable, unless the index is a side effect of a PRIMARY KEY or UNIQUE constraint on the table (SQL Server enforces any UNIQUE or PRIMARY KEY constraints using an index). Also, SQL Server does not maintain statistics on a table variable,...
在描述临时表与表变量的作用域时,有个地方要注意的是,当 SP_EXECUTESQL 或EXECUTE 语句执行字符串时,字符串将作为它的自包含批处理执行.如果表变量在 SP_EXECUTESQL 或EXECUTE 语句之前定义,在 SP_EXECUTESQL 或EXECUTE 语句的字符串中无法调用外部定义的表变量.*/--EG:USEtempdbGOSETNOCOUNTONDECLARE@1TABLE( ...
syntaxsql 複製 [ FROM { <table_source> } [ , ...n ] ] <table_source> ::= { table_or_view_name [ FOR SYSTEM_TIME <system_time> ] [ [ AS ] table_alias ] [ <tablesample_clause> ] [ WITH ( < table_hint > [ [ , ] ...n ] ) ] | rowset_function [ [ AS ] table...
SqlServer.TransactSql.ScriptDom Microsoft.SqlServer.TransactSql.ScriptDom AbortAfterWaitType AcceleratedDatabaseRecoveryDatabaseOption AddAlterFullTextIndexAction AddFileSpec AddMemberAlterRoleAction AddSearchPropertyListAction AddSensitivityClassificationStatement AddSignatureStatement AdHocDataSource AdHocTab...
SQL -- Create the table.CREATETABLETestTable (colaINT, colbCHAR(3)); GOSETNOCOUNTON; GO-- Declare the variable to be used.DECLARE@MyCounterINT;-- Initialize the variable.SET@MyCounter =0;-- Test the variable to see if the loop is finished.WHILE (@MyCounter < 26)BEGIN;-- Insert a...
Clustered columnstore index: Data Load Optimization - Parallel Bulk Import Features of In-Memory OLTP Let's look at the main features of In-Memory OLTP. Memory-optimized tables The T-SQL keyword MEMORY_OPTIMIZED, on the CREATE TABLE statement, is how a table is created to exist in active me...
►anonymous_namespace{sql_tablespace.cc} ►anonymous_namespace{sys_vars.cc} ►anonymous_namespace{table_stats.cc} ►anonymous_namespace{tls_server_context.cc} ►anonymous_namespace{uniques.cc} ►auth_kerberos_context ►auth_ldap_sasl_client ►authentication_policy ►Base64Alphabet ►...
An Environment Variable namedTSQLLINTRC A file named.tsqllintrcin the same local directory in which TSQLLint is executing A file named.tsqllintrcin the user's home directory Rule configuration TSQLLint rules may be set to "off", "warning", or "error". Rules that are violated and are...
If after executing the above code you do not receive any error, we need to perform some changes on our code to force SQL Server to choose another order when evaluating conditions in the WHERE clause. -- drop test table IF OBJECT_ID( 'dbo.Test', 'U') IS NOT NULL DROP TABLE dbo.Test...
The following example shows the SQL Server syntax that runs a stored procedure or function. [ { EXEC | EXECUTE } ] { [ @return_status = ] { module_name [ ;number ] | @module_name_var } [ [ @parameter = ] { value | @variable [ OUTPUT ] | [ DEFAULT ]...