默认值为OFF“超大规模”Azure SQL 数据库除外。 对于“超大规模”中的所有索引生成作,除非使用可恢复索引生成,否则始终 ONSORT_IN_TEMPDB。 对于可恢复索引生成,SORT_IN_TEMPDB 始终OFF。 ON 用于生成索引的中间排序结果存储在其中 tempdb。 这可以减少创建索引所需的时间。 但是,这会增加索引生成期间所使用的磁盘...
次の文は、PromotionCode という名前の暗号化された列を追加します。 SQL コピー ALTER TABLE Customers ADD PromotionCode nvarchar(100) ENCRYPTED WITH (COLUMN_ENCRYPTION_KEY = MyCEK, ENCRYPTION_TYPE = RANDOMIZED, ALGORITHM = 'AEAD_AES_256_CBC_HMAC_SHA_256') ; K. 再開可能な操作による主...
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The ALTER TABLE command adds, deletes, or modifies columns in a table.The ALTER TABLE command also adds and deletes various constraints in a table.The following SQL adds an "Email" column to the "Customers" table:ExampleGet your own SQL Server ALTER TABLE CustomersADD Email varchar(255); ...
database engine for Azure SQL Database is based on the same code base as the SQL Server database engine. Most importantly, the database engine in Azure SQL Database always has the newest SQL database engine bits. Version 12 of Azure SQL Database is newer than ve...
{FLName}={FirstName}_" "_{LastName} }, SqlComputed ]; Property LFName As %Library.String(MAXLEN = 71) [ SqlColumnNumber = 6, SqlComputeCode = { SET {LFName}={LastName}_ "," _{FirstName} }, SqlComputed ]; /// Bitmap Extent Index auto-generated by DDL CREATE TABLE statement...
网络错误导致视频加载失败,建议稍后刷新重试 [code: 4] 00 2.尚硅谷大数据学科--核心框架/尚硅谷大数据技术之ClickHouse/视频/20_ClickHouse入门_SQL操作_alter&导出.mp4 原链接:http://www.atguigu.com/ 视频文本 温馨提示:文本由机器自动转译,部分词句存在误差,以视频为准 ...
UPDATE TB_SOMERDET s SET s.gerCode = '*',s.sunCode = '*',s.lunCode = '*' WHERE s.id = cur.sid; END loop; END; 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 7. 用户操作 7.1 修改密码 > sqlplus /nolog SQL> conn /as sysdba ...
DBMS_STATSパッケージの詳細は、『Oracle Database PL/SQLパッケージ・プロシージャおよびタイプ・リファレンス』を参照してください。 次のようなコスト・ベースのオプティマイザとは関係のない統計情報の収集には、(DBMS_STATSではなく)ANALYZE文を使用します。 VALIDATE句、LIST CHAINED...
If the number of partitions in the target partitioned table has reached the maximum (32767), partitions cannot be added. If a partitioned table has only one partition, the partition cannot be deleted. When you run theDROP PARTITIONcommand to delete a partition, the data in the partition is...