Run the following query to change the column type. 1 Alter table tblstudent alter column address nvarchar(1500) Verify the changes by running following script. 1 2 3 4 use StudentDB go select TABLE_SCHEMA,TABLE_NAME,COLUMN_NAME,DATA_TYPE, CHARACTER_MAXIMUM_LENGTH from INFORMATION_SCHEMA...
AlterTableAlterColumnOption AlterTableAlterColumnStatement AlterTableAlterIndexStatement AlterTableAlterPartitionStatement AlterTableChangeTrackingModificationStatement AlterTableConstraintModificationStatement AlterTableDropTableElement AlterTableDropTableElementStatement AlterTableFileTableNamespaceStatement AlterTableRebuildState...
'CHANGE', 'CHANGED', 'CHANNEL', 'CHAR', 'CHARACTER', 'CHARSET', 'CHECK', 'CHECKSUM', 'CIPHER', 'CLASS_ORIGIN', 'CLIENT', 'CLOSE', 'COALESCE', 'CODE', 'COLLATE', 'COLLATION', 'COLUMN', 'COLUMNS', 'COLUMN_FORMAT', 'COLUMN_NAME', 'COMMENT', 'COMMIT', 'COMMITTED', 'COMPACT'...
AlterTableAlterColumnStatement AlterTableAlterIndexStatement AlterTableAlterPartitionStatement AlterTableChangeTrackingModificationStatement AlterTableConstraintModificationStatement AlterTableDropTableElement AlterTableDropTableElementStatement AlterTableFileTableNamespaceStatement AlterTableRebuildStatement AlterTableSetS...
AlterTableAlterColumnStatement AlterTableAlterIndexStatement AlterTableAlterPartitionStatement AlterTableChangeTrackingModificationStatement AlterTableConstraintModificationStatement AlterTableDropTableElement AlterTableDropTableElementStatement AlterTableFileTableNamespaceStatement AlterTableRebuildStatement AlterTableSetS...
AlterTableAlterColumnStatement AlterTableAlterIndexStatement AlterTableAlterPartitionStatement AlterTableChangeTrackingModificationStatement AlterTableConstraintModificationStatement AlterTableDropTableElement AlterTableDropTableElementStatement AlterTableFileTableNamespaceStatement AlterTableRebuildStatement AlterTableSet...
AlterTableAlterColumnStatement 构造函数 属性 方法 AlterTableAlterIndexStatement AlterTableAlterPartitionStatement AlterTableChangeTrackingModificationStatement AlterTableConstraintModificationStatement AlterTableDropTableElement AlterTableDropTableElementStatement AlterTableFileTableNamespaceStatement AlterTableRebuildStateme...
LOCATION 是指定外部表的存储路径,MANAGEDLOCATION 是指定管理表的存储路径(hive 4.0.0 才支持),官方建议默认就行,让所有的表都在一个根目录下。 例子 代码语言:javascript 代码运行次数:0 运行 AI代码解释 create database myhive;create databaseifnot exists myhive; ...
altercolumnPeopleMailvarchar(100) (4)修改表名,请使用下列语法: ALTERTABLE原表名 renameto现表名 --例如修改people表名字为people1 altertablepeople renametopeople1 (5)修改列名,请使用下列语法: ALTERTABLEtable_name CHANGE 原列名 现列名 数据类型 空不空值等 ...
Assembly: Microsoft.SqlServer.TransactSql.ScriptDom.dll Package: Microsoft.SqlServer.TransactSql.ScriptDom v161.8901.0The type of the column. C# 复制 public Microsoft.SqlServer.TransactSql.ScriptDom.ColumnType ColumnType { get; set; } Property Value ColumnType Applies to 产品版本 Microsoft.S...