Using OBJECT CATALOG VIEWS SELECT T.NAMEAS[TABLENAME], C.NAMEAS[COLUMNNAME], P.NAMEAS[DATATYPE], P.MAX_LENGTHAS[SIZE], CAST(P.PRECISIONASVARCHAR) +'/'+ CAST(P.SCALEASVARCHAR)AS[PRECISION/SCALE] FROM SYS.OBJECTSAST JOIN SYS.COLUMNSASCONT.OBJECT_ID=C.OBJECT_ID JOIN SYS.TYPESASPONC.S...
cast('+QUOTENAME(COLUMN_NAME)+' as bigint) as '+QUOTENAME(COLUMN_NAME)FROMINFORMATION_SCHEMA.COLUMNSWHEREDATA_TYPELIKE'%int'ANDTABLE_NAME=@Table_NameORDERBYCOLUMN_NAMEFORXML PATH('')),1,2,'');-- Create PK column(s)SET@PkColumn=STUFF((SELECTN' + '...
alter table t alter column c2 nvarchar(200) 範例程式碼 4-34:更動既有資料表的資料行類型時,小心是否導致大量 I/O 01 02 03 4-2 05 06 07 資料類型 14 這一點有人在大聲疾呼,一定要讓其變成可讀寫,你可以參考如下的網址: https://connect.microsoft.com/SQLServer/feedback/ViewFeedback.aspx?Feed...
ALTER DATABASE DatabaseName SET COMPATIBILITY_LEVEL = 130 Transact-SQL 語法慣例 語法 syntaxsql 複製 OPENJSON( jsonExpression [ , path ] ) [ <with_clause> ] <with_clause> ::= WITH ( { colName type [ column_path ] [ AS JSON ] } [ ,...n ] ) OPENJSON 資料表值函式會剖析作為第...
简介:T-SQL笔记4:表 本章摘要 1:CREATE 2:SQL Server 2005 Data Types 3:Adding aColumn to an Existing Table 4:Changing a Column Definition 5:Creating aComputed ... T-SQL笔记4:表 本章摘要 1:CREATE 2:SQL Server 2005 Data Types 3:Adding aColumn to an Existing Table ...
Applies to: SQL Server Azure SQL Database Azure Synapse Analytics Analytics Platform System (PDW)To create a table, you must provide a name for the table, and the names and data types of each column in the table. It is also a good practice to indicate whether null values are allowed in...
定义SQL Server 中的日期。 SQL Server 2008 (10.0.x) 中引入了date数据类型。 date 说明 展开表 properties值 语法DATE 使用情况DECLARE @MyDate DATE CREATE TABLE Table1 (Column1 DATE) 默认的字符串文字格式 (用于下级客户端)yyyy-MM-dd 有关详细信息,请参阅下级客户端的后向兼容性部分。
{ RESULT SETS UNDEFINED } | { RESULT SETS NONE } | { RESULT SETS ( <result_sets_definition> [,...n ] ) } } <result_sets_definition> ::= { ( { column_name data_type [ COLLATE collation_name ] [ NULL | NOT NULL ] } [,...n ] ) | AS OBJECT [ ...
{"Tables": [ {"TableName":"Table_0","Columns": [ {"ColumnName":"rf_id","DataType":"String","ColumnType":"string"}, ... ],"Rows": [ ["b9b84d3451b4d3183d0640df455399a9", ... ], ... ] } ] } Related content
This alias overrides the NAME attribute in the COLUMN elements of an XML format file, if present. user_defined_function Specifies a table-valued function. OPENXML <openxml_clause> Applies to: SQL Server and SQL Database. Provides a rowset view over an XML document. For more information, se...