oracle function

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Implementation of oracle function return table

How should we implement the return table through the oracle function? The following describes how to implement an oracle function return table for your reference. Use a stored procedure in the package and return the cursor. > Package Definition1)

Forcibly obtain the next value of the sequence/current value (oracle function), oracle Function

Forcibly obtain the next value of the sequence/current value (oracle function), oracle Function Http://blog.csdn.net/qq525099302/article/details/47146393-For more information about how to use a function to obtain the sequence value, see here. --

Improve query efficiency using Oracle function indexes

Using Oracle function indexes is undoubtedly an effective way to improve query efficiency. The following describes how to use Oracle function indexes in detail. When talking about any operations on columns, full table scan may occur, for example:

Oracle function index (1)

Improve query efficiency with Oracle function index anonymous Internet I want to comment (0) font size: T| T To improve the efficiency of Oracle Database Query and retrieval, using function indexes is undoubtedly a very good method. The usage of

The return type of the oracle function is record-defined instance.

The methods defined by the oracle function return type as record may not be available to everyone. The following describes an oracle function return type as record-defined instance for your reference. CREATE OR REPLACE Package pkg_test /*

(Oracle function backup) Oracle function list

Oracle function list:========================================================== ========================================================== ==================================PL/SQL single-row functions and group functionsA function is a program with

The Oracle function to_char converts the number of digits to the decimal point.

In the Oracle function to_char to convert the number type to specify the number of digits of the corresponding decimal point, we need to use the relevant functions to convert the numeric or date type to the numeric type, the following is a detailed

Oracle function INSTR usage

Oracle function INSTR usage: (source string, target string, start position, matching serial number) in OraclePLSQL, The instr function returns the string to be truncated in the source string Oracle function INSTR usage: (source string, target

Oracle function WMSYS. WM

1. Use the oracle function WMSYS. WM_CONCAT to convert the result to the result. Use the function WMSYS. WM_CONCAT. The query statement must be used together with groupbyselectaa, wmsys. wm_concat (t1.name) from (selectt. name, to_char (t.

Oracle function (converts the entire string to lowercase)

Oracle function (converts the entire string to lowercase) NLS_LOWER (x [, y]) [function] returns the string and converts it to lowercase. [parameter] x-character expression [parameter] Nl Oracle function (converts the entire string to lowercase)

Oracle function (converts the entire string to uppercase)

Oracle function (converts the entire string to uppercase) NLS_UPPER (x [, y]) [function] returns a string and converts the string to uppercase. [parameter] x parameter expression [parameter] Oracle function (converts the entire string to uppercase)

Decode anatomy of Oracle function usage

Decode for Oracle function usage. The DECODE function compares the value with a series of sequence dolls to determine the final returned results. We compared the Oracle function with the switch function and found that they are basically similar. The

Force get sequence Next value/Current value (Oracle function)

Original link--http://blog.csdn.net/qq525099302/article/details/47146393Why use a function to get sequence values see here--Create a function to get the next value of the sequence Create or replace function Get_seq_next (seq_name in varchar2)

Extended oracle function library (oci) in WAMP environment, wampoci_PHP tutorial

Extended oracle function library (oci) and wampoci in the WAMP environment. In the WAMP environment, the extended oracle function library (oci), wampoci received a task yesterday, and used php to process the content of the oracle database, however,

Extending the Oracle Function library (OCI) in the WAMP environment, wampoci_php tutorial

Extended Oracle Function Library (OCI) in Wamp environment, WAMPOCI The colleague received a task yesterday to use PHP to process the contents of the Oracle database, but the PHP open Oracle extension is not as straightforward as MySQL, and

Explain the Oracle function sys_connect_by_path,

Explain the Oracle function sys_connect_by_path, Oracle function sys_connect_by_path Syntax:Oracle function: sys_connect_by_path is mainly used for tree query (hierarchical query) and Multi-column forwarding. The syntax is generally:Select...

Gets the random time of the specified date (Oracle function)

Original Address--http://blog.csdn.net/qq525099302/article/details/47146067/*v_date ' yyyy-mm-dd ' format date string v_begin the relative minimum of a random date, in days, default 0v_end random date relative maximum, in days, default 1*/ Create or

Instructions for using Oracle function Listagg

Instructions for using Oracle function ListaggAt work, customers often come up with the requirement that they want to enumerate the dates one by one in a summary merge., the original data is this:Customers want to be able to achieve such a summary

[Reprint]oracle function Listagg instructions for use

Work often meet a lot of demand is this, according to the conditions to summarize some fields, such as I encountered is, our company has three investment platform, the same customer with a mobile phone number in three platforms are registered, but

Instructions for using the Oracle function Listagg (group after join field)

Instructions for using Oracle function ListaggAt work, customers often come up with the requirement that they want to enumerate the dates one by one in a summary merge., the original data is this:Customers want to be able to achieve such a summary

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