SQLCREATETABLEmy_database.my_schema.my_table(idINTAUTOINCREMENT,nameSTRING,created_atTIMESTAMP_LTZDEFAULTCURRENT_TIMESTAMP,PRIMARYKEY(id)); 1. 2. 3. 4. 5. 6. 7. 修改表 添加列或更改表结构可以通过ALTER TABLE命令来完成: 复制 SQLALTERTABLEmy_database.my_schema.my_tableADDCOLUMNemailSTRING; ...
SQLCREATETABLEmy_database.my_schema.my_table(idINTAUTOINCREMENT,nameSTRING,created_atTIMESTAMP_LTZDEFAULTCURRENT_TIMESTAMP,PRIMARYKEY(id)); 1. 2. 3. 4. 5. 6. 7. 修改表 添加列或更改表结构可以通过ALTER TABLE命令来完成: 复制 SQLALTERTABLEmy_database.my_schema.my_tableADDCOLUMNemailSTRING; ...
ParameterTypeRequiredDefaultChange Monitoring Support on_configuration_change <string> no apply n/a target_lag <string> yes alter snowflake_warehouse <string> yes alter refresh_mode <string> no AUTO refresh initialize <string> no ON_CREATE n/a...
Test importsqlalchemy# set up the connectionsnowflake_conn ='<your-connection-string-here>'engine = sqlalchemy.create_engine(snowflake_conn)# create a table for testing, add a column commentengine.execute('create table public.test ("col1" text);') engine.execute("""alter table public.test...
public.emqx MATCH_BY_COLUMN_NAME = CASE_INSENSITIVE; Create a new user and set the RSA public key for that user: sql CREATE USER IF NOT EXISTS snowpipeuser PASSWORD = 'Snowpipeuser99' MUST_CHANGE_PASSWORD = FALSE; ALTER USER snowpipeuser SET RSA_PUBLIC_KEY = ' <YOUR_PUBLIC_KEY_CONTENTS...
-- create a tag on an existing table’s column alter table <table_name> modify column <column_name> set tag <tag_key> = '<tag_value>' [ , <tag_key> = ’<tag_value>’ , ... ]; alter table <table_name> modify column <column_name> unset <tag_key> [ , <tag_key> , .....
nullable; when checked, the column will be marked as nullable and empty values ('') in that column will be converted to NULL. Use this for non-string columns with missing data. default value; the provided value will be set as the default value of the column in the target table.The...
Use a Column Name or Number in an ORDER BY Statement Two Examples of ORDER BY using Different Techniques Changing the ORDER BY to Descending Order NULL Values Sort Last in Ascending Mode (Default) Using the Nulls First Command NULL Values Sort First in Descending Mode (DESC) ...
[varchar](400) NULL, [DeltaValueTo] [varchar](400) NULL, [Comments] [varchar](400) NULL, [CreatedDateTime] [datetime] NOT NULL, [ModifiedDateTime] [datetime] NOT NULL ) ON [PRIMARY] TEXTIMAGE_ON [PRIMARY] GO ALTER TABLE [dbo].[Shivendoo_Config] ADD DEFAULT (...
Add(p3); var count = cmd.ExecuteNonQuery(); Assert.AreEqual(3, count); cmd.CommandText = "drop table if exists T"; count = cmd.ExecuteNonQuery(); Assert.AreEqual(0, count); conn.Close(); } Bind Array Variables The sample code creates a table with a single integer column and the...