LEFT JOIN pg_catalog.pg_aggregate a ON a.aggfnoid = p.oid WHERE a.aggfnoid IS NOT NULL AND p.proname like 'string_agg%'; function_name | result_type | argument_types | function_type | aggtransfn | aggfinalfn ---+---+---+---+---+--- string_agg | text | text, text ...
23-4 23.1.8 Oracle Business Rules Expressions: New Options and Built-in Functions ... 23-4 23.1.9 Audit Trail for Upgraded AS11 Rules Components Shows Only Basic Information 23-5 23.1.10 Non-English Rule Names Are Displayed as Garbled When Oracle JDeveloper is Started in Native Encoding 23...
/*Oracle中空字符串''就是null(也就是说,只有null,没有空字符),而MySQL是区分null和''的。 对于使用语句:select * from table1 where user_name <> ''来查询列user_name不为空(不为null且不为空字符)时,Oracle会查不出任何结果,而MySQL可以正常运行。这里MySQL之所以可以得到正确结果,还因为比较符号<>会...
The UTL_I18N PL/SQL package provides the following functions:String conversion functions for various datatypes Escape and unescape sequences for predefined characters and multibyte characters used by HTML and XML documents Functions that map between Oracle, Internet Assigned Numbers Authority (IANA), ISO...
[USING 'connect_string'] 说明: 1) 权限:创建数据库链接的帐号必须有CREATE DATABASE LINK或CREATE PUBLIC DATABASE LINK的系统权限,用来登录到远程数据库的帐号必须有CREATE SESSION权限。这两种权限都包含在CONNECT角色中(CREATE PUBLIC DATABASE LINK权限在DBA中)。一个公用数据库链接对于数据库中的所有用户都是可...
Boolean values aren’t surrounded by quotes and are treated as string values. Null. Null represents a value that is intentionally left empty. When no value is assigned to a key, it can be treated as null. Number. Numbers are used to store numerical values for various purposes, such as...
[USING 'connect_string'] 说明: 1) 权限:创建数据库链接的帐号必须有CREATE DATABASE LINK或CREATE PUBLIC DATABASE LINK的系统权限,用来登录到远程数据库的帐号必须有CREATE SESSION权限。这两种权限都包含在CONNECT角色中(CREATE PUBLIC DATABASE LINK权限在DBA中)。一个公用数据库链接对于数据库中的所有用户都是可...
Adapt and respond to change faster and more effectively by managing your master data, whether migrating an application to the cloud; managing the effects of mergers and acquisitions; or reconciling metadata differences across business functions and applications....
RegisterDial(func(ctx context.Context, network, address string) (net.Conn, error) { // your custom dial code }) go_ora.RegisterConfig(config) db, err := sql.Open("oracle", "")version 2.8.12add 2 functions ParseConfig RegisterConnConfig fix issue related to LONG and JSON data types ...
lpad(string char, length int, fill char) 使用填充字符串将左填充到指定长度。 参数一:字符串。 参数二:指定长度。 参数三:填充字符串fill。 说明 当字符串是CHAR 类型,PostgreSQL删除尾随空格,Oracle不删除尾随空格。 SELECT lpad('abc '::char(4),6,'x'); 返回信息如下: lpad --- xxabc (1 row)...