DROP QUERY Test.BonusCalc FROM queryBonusCalc: drops the query SQLUser.BonusCalc(). DROP QUERY BonusCalc FROM Employees.queryBonusCalc: drops the query Employees.BonusCalc(). DROP QUERY Test.BonusCalc FROM Employees.queryBonusCalc: drops the query Employees.BonusCalc(). 如果指定的查询不存在,DRO...
ClassMethodDropQuery(){&sql(DROP QUERY myq FROMUser.Employee)ifSQLCODE=0{w!,"查询已删除"}elseif SQLCODE=-360{w!,"不存在的类: ",%msg}elseif SQLCODE=-362{w!,"不存在的函数: ",%msg}else{w!,"意外错误代码: ",SQLCODE}}
DROP QUERY Test.BonusCalc FROM Employees.queryBonusCalc:drops the query Employees.BonusCalc(). 如果指定的查询不存在,DROP QUERY将生成SQLCODE-362错误。如果指定的类不存在,DROP QUERY将生成SQLCODE-360错误。如果指定的查询可以引用两个或多个查询,DROP QUERY将生成SQLCODE-361错误;必须指定一个类名来解决此歧义。
DROP QUERY BonusCalc FROM User.queryBonusCalc: drops the query SQLUser.BonusCalc(). DROP QUERY Test.BonusCalc FROM queryBonusCalc: drops the query SQLUser.BonusCalc(). DROP QUERY BonusCalc FROM Employees.queryBonusCalc:...
Query OK,0rows affected (0.01sec) mysql>mysql>DROPTABLEIFEXISTSB3; #删除一张表,我这里加了判断条件,意思是当这张表存在就删除,若不存在就不执行删除操作,这样可以避免报错～ Query OK,0rows affected,1warning (0.00sec) mysql>mysql>SHOW TABLES;+---+|Tables_in_A3|+---+|v_B3|+---+1rowinset...
2、Flink SQL示例 1)、非分区表示例 2)、分区表 五、Flink SQL常见的操作示例 本文简单介绍了DROP、alter、insert和analyze的语法及示例 ,并且将FLink sql常用的sql以java 方法整理成一个类,可以直接在java中使用,或在Flink sql cli中直接使用。 本文依赖flink集群能正常使用。 本文示例java api的实现是通过Flink...
After an index is dropped, the resulting heap appears in thesys.indexescatalog view withNULLin thenamecolumn. To view the table name, joinsys.indexeswithsys.tablesonobject_id. For an example query, see example D. On multiprocessor computers that are running SQL Server 2005 Enterprise edition ...
After an index is dropped, the resulting heap appears in thesys.indexescatalog view with NULL in thenamecolumn. To view the table name, joinsys.indexeswithsys.tablesonobject_id. For an example query, see example D. On multiprocessor computers that are running SQL Server 2005 Enterprise Edition...
How to Drop Table in SQL? The syntax to drop a table is as below: DROPTABLEtable_name; DROPTABLESTUDENTS; The above query will drop the table ‘STUDENTS,’ i.e., the data and table definition for the table will be removed. So we need to be careful before executing a drop statement...
SQL> DROP TABLE website; Query OK, 0 rows affected (0.01 sec) 现在,如果您再次尝试使用 DESC 命令,那么您将看到以下的错误: SQL> DESC website; ERROR 1146 (42S02): Table 'test.website' doesn't exist 这里,test 是本教程使用的演示数据库的名字。 发布于 2023-02-11 22:24・IP 属地辽宁 ...