Modifies the properties, columns, or constraints for an existing table.See also: ALTER TABLE … ALTER COLUMN , CREATE TABLE , DROP TABLE , SHOW TABLES , DESCRIBE TABLESyntax ALTER TABLE [ IF EXISTS ] <name> RENAME TO <new_table_name> ALTER TABLE [ IF EXISTS ] <name> SWAP WITH <...
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_CI_AI; 请注意,修改表名或列名可能会影响到依赖于这些名称的查询和应用程序,因此在执行这些操作之前,请确保备份数据并测试更改的影响。
tableOn (rename of table_name column in full set of columns) LIKE 'pattern' Optionally filters the command output by object name. The filter uses case-insensitive pattern matching, with support for SQL wildcard characters (% and _). For example, the following patterns return the same results...
"dbt_version":"1.7.14","profile_name":"all","target_name":"sf","node_id":"model.my_dbt_project.foo_2024_03_disabled"}*/select"name","schema_name","database_name","text","target_lag","warehouse"fromtable(
SELECT Specific Columns in a Table Commas in the Front or Back? Place your Commas in front for better Debugging Capabilities Sort the Data with the ORDER BY Keyword Use a Column Name or Number in an ORDER BY Statement Two Examples of ORDER BY using Different Techniques ...
How to Rename a Table How to Truncate a Table How to Flash Back a Table How to Add/Drop Table Column Managing Data COPY-INTO INSERT DELETE UPDATE REPLACE MERGE-INTO Managing Views How to Create a View How to Drop a View How to Alter a View ...
No Auto Join of cols by primary/foreign key or name Yes No Client-side commands Feature DbVisualizer Pro DbVisualizer Free @beep Yes No @call Yes No @cd Yes No @command Yes No @commit Yes No @continue on Yes No @ddl Yes No
StatMan – an internal process, that creates auto-stats on the ProductId column(#temp table). The ProductId column is used in the JOIN predicate. StatMan creates auto-stats on the ProductName column(#temp table). The ProductName column is used for the grouping. The stat header and histogra...
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); 返回:SQL 编译错误:无法将列 [COLUMN_NAME] 从类型 VARCHAR...
如果您想实际更改表中的名称，我认为您需要三个alter表：