SQL>show userUSER为"HR"SQL>SELECTfirst_name,last_name,department_id,2CASEdepartment_id3WHEN10THEN'Accounting'4WHEN20THEN'Sales'5WHEN30THEN'Finance'6ELSE'Other'7ENDdepartment_name8FROMemployees where rownum<2;FIRS
This Oracle tutorial explains how to use the Oracle/PLSQLCASE statementwith syntax and examples. Description The Oracle/PLSQL CASE statement has the functionality of an IF-THEN-ELSE statement. Starting in Oracle 9i, you can use the CASE statement within a SQL statement. Syntax The syntax for ...
DECODE is considered the most powerful function in Oracle. Oracle 8i release introduced the CASE expression. The CASE expression can do all that DECODE does plus lot of other things including IF-THEN analysis, use of any comparison operator and checking multiple conditions, all in a SQL query i...
sql code: select * from table_name t where (case when t.table_column='条件' then t.table_column when t.table_column='条件' then t.table_column end)='条件' my sql code: -- 测试sql SELECT *FROM PROJECT_INFO pi WHERE (CASE WHEN PI.START_DATE_OF_REMOTE_AUDIT IS NOT NULL THEN TO...
和check for contains文本的select语句EN我寻找了一个工作示例，在该示例中，我可以使用mutliple case ...
This Oracle tutorial explains how to use the Oracle INSERT statement with syntax, examples, and practice exercises. The Oracle INSERT statement is used to insert a single record or multiple records into a table in Oracle.
Oracle的CASE WHEN语法报ORA-00932错误 SELECT CASE WHEN dummy = 'x' THEN '-' ELSE 3 END FROM dual 1. 2. 3. 4. 5. 6. 上面SQL会报下面错误: ORA-00932: 数据类型不一致: 应为 CHAR, 但却获得 NUMBER 这是因为 THEN 后面是 CHAR 类型数据,而 ELSE 后面是 NUMBER 类型数据,数据类型不一致报错...
Oracle SQL CASE WHEN ORA-00932：不一致的数据类型：预期的CHAR得到了编号00932.00000-“不一致的数据...
以下以兼容Teradata模式为例运行SQL,如果需要查看Oracle、MySQL兼容模式下的行为差异,可以切换到对应的数据库ora_compatible_db、mysql_compatible_db,然后运行以下相同的SQL语句(表名相应替换为ora_table、mysql_table),即可体会上表所列举的不同兼容模式下的行为差异。 CREATE TABLE td_table(a INT,b VARCHAR(5),c...
Oracle9i SQL Reference for details about the SET TRANSACTION and ALTER SESSION statements.The settings for these parameters should be changed only when an instance is shut down. If multiple instances are accessing a single database, then all instances should use the same setting for these parameters...