sqlserver表怎么生成数据字典-编程学习网

在 SQL Server 中生成数据字典可以通过以下步骤实现：

查询表结构信息：使用系统视图或者函数查询表的结构信息，例如查询表名、列名、数据类型、长度、约束等信息。

SELECT 
    TABLE_NAME,
    COLUMN_NAME,
    DATA_TYPE,
    CHARACTER_MAXIMUM_LENGTH,
    IS_NULLABLE,
    COLUMN_DEFAULT
FROM INFORMATION_SCHEMA.COLUMNS
WHERE TABLE_NAME = 'YourTableName'

查询表的索引信息：查询表的索引信息，包括索引名称、列名、排序方式等信息。

SELECT 
    TableName = t.name,
    IndexName = ind.name,
    ColumnName = col.name,
    ind.type_desc,
    ind.is_unique
FROM sys.indexes ind
INNER JOIN sys.index_columns ic ON ind.object_id = ic.object_id and ind.index_id = ic.index_id
INNER JOIN sys.columns col ON ic.object_id = col.object_id and ic.column_id = col.column_id
INNER JOIN sys.tables t ON ind.object_id = t.object_id
WHERE t.name = 'YourTableName'

查询表的约束信息：查询表的约束信息，包括主键约束、外键约束、唯一约束等信息。

SELECT 
    TableName = t.name,
    ConstraintName = c.name,
    ConstraintType = c.type_desc,
    ColumnName = col.name
FROM sys.tables t
INNER JOIN sys.default_constraints dc ON t.object_id = dc.parent_object_id
INNER JOIN sys.columns col ON dc.parent_object_id = col.object_id AND dc.parent_column_id = col.column_id
INNER JOIN sys.check_constraints cc ON t.object_id = cc.parent_object_id
INNER JOIN sys.columns col2 ON cc.parent_object_id = col2.object_id AND cc.parent_column_id = col2.column_id
WHERE t.name = 'YourTableName'