select ceil(months_between(SYSDATE,to_date('1998-04-01','yyyy-mm-dd'))/12) from dual;等同于 select datediff(year,'1998-04-01',getdate())
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SQL_CONVERT_DATE SQL_CONVERT_DECIMAL SQL_CONVERT_DOUBLE SQL_CONVERT_FLOAT SQL_CONVERT_INTEGER SQL_CONVERT_INTERVAL_DAY_TIME SQL_CONVERT_INTERVAL_YEAR_MONTH SQL_CONVERT_LONGVARBINARY SQL_CONVERT_LONGVARCHAR SQL_CONVERT_NUMERIC SQL_CONVERT_REAL SQL_CONVERT_SMALLINT SQL_CONVERT_TIME SQL_CONVERT_TIMESTAM...
and it also sets up other kernel configuration settings as required for Oracle Database installations. If you plan to use job-role separation, create an extended set of database users and groups depending on your requirements.
SQL_CONVERT_DATE SQL_CONVERT_DECIMAL SQL_CONVERT_DOUBLE SQL_CONVERT_FLOAT SQL_CONVERT_INTEGER SQL_CONVERT_INTERVAL_DAY_TIME SQL_CONVERT_INTERVAL_YEAR_MONTH SQL_CONVERT_LONGVARBINARY SQL_CONVERT_LONGVARCHAR SQL_CONVERT_NUMERIC SQL_CONVERT_REAL SQL_CONVERT_SMALLINT SQL_CONVERT_TIME SQL_CONVERT_TIMESTAM...
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通过DBMS_SQL包中的RETURN_RESULT过程,Oracle 12c目前支持类似的功能。这在实施迁移时非常有用。 CREATE PROCEDURE Get_Results ( @p_id int ) AS SELECT dscpt, crt_date FROM t1 WHERE id = @p_id RETURN 0 GO 1. 2. 3. 4. 5. 6.
--ScriptName : get_table_ddl.sql --Author : 潇湘隐者 --CreateDate : 2018-06-15 --Description : 输出表、表的注释、表的索引、约束、对象权限的DDL语句. *** --Parameters : 参数说明 ***
Learn about Oracle SQL Developer What Is Oracle SQL Developer? Install and Get Started with Oracle SQL Developer Create a Database Connection Browse Database Objects Migrate User Settings from a Previous Release Major Features of Oracle SQL Developer ...