Oracle实现SQL的isnumeric 函数 CREATEORREPLACEFUNCTIONisnumeric(strinVARCHAR2)returnNUMBER is begin if strisnull then return0; else -- if regexp_like(str,'^([a-z]+|[0-9]+)$') --只包含数字0-9,小写字母a-z if regexp_like(str,
ENDisnumeric; 2. 利用 regexp_like 代码语言:txt AI代码解释 CREATE OR REPLACE FUNCTION isnumeric (str IN 代码语言:txt AI代码解释 RETURN 代码语言:txt AI代码解释 IS 代码语言:txt AI代码解释 BEGIN 代码语言:txt AI代码解释 IF str IS NULL 代码语言:txt AI代码解释 THEN 代码语言:txt AI代码解...
3. 利用 TRANSLATE CREATE OR REPLACE FUNCTION isnumeric (str IN VARCHAR2) RETURN NUMBER IS v_str VARCHAR2 (1000); BEGIN IF str IS NULL THEN RETURN 0; ELSE v_str := TRANSLATE (str, '.0123456789', '.'); IF v_str = '.' OR v_str = '+.' OR v_str = '-.' OR v_str IS N...
stringinsertSql=string.Format(@"INSERT INTO tbpark_enterprise ({0}) VALUES({1})", insertColumnString, insertValueString); stringupdateSql=string.Format("Update tbpark_enterprise set {0} Where COMPANY_CODE='{1}'", updateValueString, COMPANY_CODE); stringcheckExistSql=string.Format("Select count...
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...
mysql中isnumeric # 实现mysql中isnumeric函数 ## 1. 事情流程 在mysql中并没有内置的isnumeric函数,但我们可以通过自定义函数来实现这个功能。下面是实现的步骤: | 步骤 | 操作 | | --- | --- | | 1 | 创建一个自定义函数 | | 2 | 判断输入是否为数字 | | 3 | 返回结果 | ## 2. 操作步骤 ...
sql clone "alter system set spfile= ''/oracle/app/oracle/product/11.2.0/db/dbs/spfileDGPHY1.ora''"; } executing Memory Script Starting backup at 2016-02-18 14:29:41 allocated channel: ORA_DISK_1 channel ORA_DISK_1: SID=71 instance=DGPRI1 device type=DISK Finished backup at 2016-02...
Oracle SQLcl (SQL Developer Command Line) is a Java-based command-line interface for Oracle Database. Using SQLcl, you can execute SQL and PL/SQL statements interactively or as as a batch file. SQLcl provides inline editing, statement completion, command
ERROR at line 1: ORA-00604: error occurred at recursive SQL level 1 ORA-06502: PL/SQL: numeric or value error: character string buffer too small ORA-06512: at "WMSYS.NO_VM_CREATE_PROC", line 147 ORA-06512: at line 26 対処方法: インストールを試行する前に、データベース・パッ...
If you plan to export a SQL Server database you need to install the Perl module DBD::ODBC which requires that the unixODBC package is installed. On some Perl distribution you may need to install the Time::HiRes Perl module. If your distribution doesn't include these Perl modules you can ...