decode function

The operation efficiency of the ABAP program is mainly the acquisition of large amount of data in the program, if no method is taken, it affects the running efficiency of the report, and all the optimized ABAP programs are the methods to optimize

Really bored, whim, want to put the PHP inside part already provide encapsulated function re-use PHP implementation again, So the following code is mainly implemented in PHP part of the string processing function, while the implementation of some

For testing crud Public Function crudtest () { @todo: Full Function permission check Create a CRUD Master Table object $crud = new Scrud (' Twh_adminstractor ', $this->controller, $this->action); To configure a field $crud->field (' sort

Use the Instr () and decode () functions of Oracle for multi-condition combination of ORACLE functions The system encounters a situation where you want to process the multi-condition combination query, using the implementation methods of the instr

This article mainly introduces common escape functions and security functions in PHP. these functions can be used to filter out most common attack methods, such as SQL injection. For more information, see 1. addslashesAddslashes escapes special

The DECODE syntax of the Oracle utility function is as follows: DECODE (value, if1, then1, if2, then2, if3, then3,... else) Value represents any class of a table. The DECODE syntax of the Oracle utility function is as follows: DECODE (value, if1,

(1) select the most efficient table name sequence (only valid in the rule-based Optimizer): The Oracle parser processes the table names in the from clause in the order from right to left, the base table driving table written in the from clause will

Used to test CRUDpublicfunctioncrudTest () {@ todo: the entire function permission check creates a CRUD main table object $ crud = // used to test the CRUD Public function crudTest (){ // @ Todo: check the permissions of the entire function //

Really bored, whim, want to put the PHP inside part already provide encapsulated function re-use PHP implementation again,So the following code is mainly implemented in PHP part of the string processing function, while the implementation of some

Java SQL statement optimization experience and PostgreSQL statement Optimization Java SQL statement optimization experience (1) select the most efficient table name sequence (only valid in the rule-based seo/'target = '_ blank'> Optimizer ):The

1. addslashesAddslashes returns a string that is preceded by a backslash in order for the database query statement to be preceded by some characters. These characters are single quotes ('), double quotation marks ("), backslashes (\), and NUL (the

Write efficient SQL statements and SQL statements (1) simple integration with no associated database access: If you have several simple database query statements, you can integrate them into a single query (even if there is no relationship between

Various scan code softwareRecently to do a two-dimensional code recognition of the project, find two-dimensional code to identify a lot of open source of non-open source softwarehttp://www.oschina.net/project/tag/238/ZbarFirst try to Zbar,python

  Project requirements: Count the attendance rate of each inspector (USER_ID) for the current month and query related fields Sign-In rate formula: the unit is inspection personnel, (Total number of inspection points in all the points sign in this

Functions can be used to complete a series of operations. The difference between databases is that the support for functions is different. The learning function of this note. Functions are divided into single-row functions and multi-row functions.

Oracle SQL statement optimization, oraclesql (1) select the most efficient table name sequence (only valid in the rule-based Optimizer ):The Oracle parser processes the table names in the FROM clause in the order FROM right to left. The table

OracleSQL Performance OptimizationOracle SQL Performance Optimization (1)Select the most efficient table name sequence (valid only in the rule-based Optimizer ):The ORACLE parser processes the table names in the FROM clause in the order FROM right

Database SQL optimization Summary-millions of database optimization solutions, Database SQL (1) select the most efficient table name sequence (only valid in the rule-based seo/'target = '_ blank'> Optimizer ): the ORACLE parser processes the table

Experience in SQL statement optimization and SQL statement Optimization (1) select the most efficient table name sequence (only valid in the rule-based seo/'target = '_ blank'> Optimizer ): the ORACLE parser processes the table names in the FROM

Author: dinya Abstract: During the development process, we often encounter the need to convert the display mode of tables. We often call it vertical table to horizontal table conversion, this article uses an example to briefly illustrate the common