fromsqlalchemyimportColumn, Integer, String, ForeignKeyfromsqlalchemy.ormimportrelationship, declarative_basefromsqlalchemy.ext.asyncioimportcreate_async_engine, AsyncSessionfromsqlalchemy.ormimportsessionmaker Base=declarative_base()classDictTypeInfo(Base):__tablename__='dict_type_info'id= Column(Integer, ...
WHERE is_fixed_role = 0 -- Remove for SQL Server 2008 and name = '"+$server_principal+"'")Write-Host"`n*** Database Principal (user) permissions ***`n`n"sqlcmd-E-S$server_name-d$database_name-Q("set nocount on; SELECT convert(varchar(32),pr.type_desc) as user_type,...
Can't add datetime column with default value in SQL Server 2005 Can't change the currente collate of my database Can't copy the result of a query? Can't declare table parameter as input to stored procedure Can't delete rows from Mgt Studio view Can't Enable Foreign Key Constraint (...
setLeftExpression(new Column(t1, "user_id ")); equalsTo.setRightExpression(new Column(t2, "user_id ")); join.withOnExpression(equalsTo);// 添加ON plainSelect.addJoins(join); System.err.println(plainSelect); // SELECT * FROM tab1 AS t1 JOIN tab2 t2 ON t1.user_id = t2.user_id...
mysql> use mysql;Readingtable information for completion oftableand column namesYou can turn off this feature to get a quicker startup with-ADatabase changedmysql>select database();+---+| database()|+---+| mysql|+---+1 rowinset(0.00 sec) 2、创建数据库 释义 <数据库名>:创建数据...
USE DEFAULT;2. 表的创建和删除 • 通用格式 CREATE [TEMPORARY] [EXTERNAL] TABLE [IF NOT EXISTS] [db_name.]table_name [(col_name data_type [column_constraint_specification] [COMMENT col_comment], ... [constraint_specification])] [COMMENT table_comment] ...
hive修改字段:alter table table_name change old_column new_column string comment 'comm_text'; 删除分区:alter table table_name drop partition(dt='2021-11-30'); 添加分区:alter table table_name add partition (dt='2021-11-30'); 删除空数据库:drop database myhive2; ...
ADD COLUMN ... DEFAULT ... 新增直欄的預設值務必要和已有此直欄之表格中的直欄預設值相同。在已有此直欄的表格中查詢直欄的 SYSCAT.COLUMNS.IMPLICITVALUE。如果此值非 NULL,則使用 ALTER TABLE ADD COLUMN 陳述式的預設子句來設定預設值,使其符合 SYSCAT.COLUMNS.IMPLICITVALUE 中的值。 附註:直欄僅能加...
ADD COLUMN column_name column_type [KEY | agg_type] [DEFAULT "default_value"] [AFTER column_name|FIRST] [TO index_name] [PROPERTIES ("key"="value", ...)] 注意: 聚合模型如果增加 value 列,需要指定agg_type 非聚合模型如果增加key列,需要指定KEY关键字 不能在rollup index中增加base index中...
Django 1.11 before 1.11.28, 2.2 before 2.2.10, and 3.0 before 3.0.3 allows SQL Injection if untrusted data is used as a StringAgg delimiter (e.g., in Django applications that offer downloads of data as a series of rows with a user-specified column delimiter). By passing a suitably ...