We know that character fields can contain uppercase and lowercase characters. How can we ignore case-insensitive characters in SQL fuzzy queries?
For example, select * From tablename where fieldb like 'a % '. You want to obtain all records starting
"Barrier Reproduction"Condition Description 01: A program is often reported in the Linux downgrade can not find the table, but I clearly built a table, testing, encountered some problems, from the Windows platform to access the virtual machine in
In our project development, we often encounter the requirements of multiple conditional fuzzy queries. There are two common solutions for this: one is to stitch the SQL string at the end of the program, construct the corresponding SQL string based
1. Case all keywords in the uppercase T-SQL language are capitalized, specification requirements. 2. use ";" Use ";" As a Transact-SQL statement terminator. Although a semicolon is not required, it is a good practice to use it, and you must add ";"
1 Introduction1.1 General SQL Injection Technology OverviewThere is no standard definition of SQL injection technology, and the Microsoft China Technology Center is described in 2 ways [1]:(1) Script-injected attacks(2) Malicious user input used to
Ext.: http://hi.baidu.com/duwang1104/item/65a6603056aee780c3cf29681 Introduction1.1 General SQL Injection Technology OverviewThere is no standard definition of SQL injection technology, and the Microsoft China Technology Center is described in 2
Introduction to OraclePLSQL
Oracle PL/SQL Basics
The ORACLE tutorial is the basics of Oracle PL/SQL language.
PL/SQL is an extension of ORACLE's standard database language. ORACLE has integrated PL/SQL into ORACLE servers and other tools, in recent
Pl/SQL is an extension of oracle's standard database language. oracle has integrated pl/SQL into oracle servers and other tools, in recent years, more developers and DBAs have started to use pl/SQL. This article describes basic pl/SQL syntax,
The ORACLE tutorial is the basics of Oracle PL/SQL language.
PL/SQL is an extension of ORACLE's standard database language. ORACLE has integrated PL/SQL into ORACLE servers and other tools, in recent years, more developers and DBAs have started to
Chapter 2 procedural performance tuning of PL/SQL applications
I. Reasons for PL/SQL Performance problems
When the execution efficiency of PL/SQL-based applications is low, it is usually caused by poor SQL statements and programming methods,
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