确保你的Snowflake设置中启用了自动转换小写名称到大写的选项。如果没有启用,可以通过以下SQL命令手动修改表名或列名: 代码语言:txt 复制 ALTER TABLE your_table_name RENAME TO YOUR_TABLE_NAME; ALTER TABLE your_table_name ALTER COLUMN your_column_name SET DATA TYPE VARCHAR(255) COLLATE LATIN1_GENERAL...
我需要将雪花中的 VARCHAR(16777216) 类型修改为 NUMBER 。 ALTER TABLE [TABLE_NAME] ALTER [COLUMN_NAME] 设置数据类型为 NUMBER;返回:SQL 编译错误:无法将列 [COLUMN_NAME] 从类型 VARCHAR(16777216) 更改为 NUMBER(38,0) 还有ALTER TABLE [TABLE_NAME] ALTER [COLUMN_NAME] 设置数据类型 VARCHAR(500); ...
如果您想实际更改表中的名称，我认为您需要三个alter表：
AzureSqlMITableDataset AzureSqlSink AzureSqlSource AzureSqlTableDataset AzureStorageAuthenticationType AzureStorageLinkedService AzureSynapseArtifactsLinkedService AzureTableDataset AzureTableSink AzureTableSource AzureTableStorageLinkedService BigDataPoolParametrizationReference ...
SELECTtable_a.*RENAMEcolumn_in_table_aAScol_alias_a,table_b.*RENAMEcolumn_in_table_bAScol_alias_b... Note When specifying a combination of keywords afterSELECT*: You cannot specify bothILIKEandEXCLUDE. If you specifyEXCLUDEwithRENAMEorREPLACE: ...
There's no way within a queries FROM clause to expand array/object columns into columnarised tabular output. One possible solution is to use a Stored Procedure to convert it. Although UDFs don't support returning undefined columns as output, SQL and Python Stored Procedures do. ...
If a default expression refers to a SQL UDF, then the function is replaced by its definition at table creation time. If the user-defined function is redefined in the future, this does not update the column’s default expression. The simple expression cannot contain references to: Subqueries. ...
I had an issue when someone from my team recreated the table more than once using CREATE OR REPLACE as there were some new fields that had to be added. However, instead of adding a column using ALTER TABLE, the entire table was recreated....
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) ...
SQL execution logging with filtering options Yes Yes Pre-defined editing key maps Yes Yes Merge Result Sets in Text Format Yes No Result Set Management Feature DbVisualizer Pro DbVisualizer Free Auto resize columns, manual column resizing Yes Yes Double click column divider...