db2 sql substring

Tags: SQL Oracle server DB2 time functionSQL Server Time article: *************************************************************One, Time function--getdate Get current timeSelect GETDATE ()--dateadd Original time Add: 2013-02-17 13:20:16 this time plus 12 monthsSelect DATEADD (month,12, ' 2013-02-17 13:20:16 ')--return: 2014-02-17 13:20:16.000 (parameter MONTH can be changed to day,year etc. date plus corres

Batch execution of DB2 SQL scripts is often used when we use DB2 databases. How can we implement batch execution of DB2 SQL scripts? After reading the following, you can find the answer. Batch execution of DB2

"-" occurrence CHARINDEX ('-', reverse (@str)) Gets the character after the last "-" Reverse (substring (reverse (@str), 1,charindex ('-', reverse (@str))-1)) Type conversions CAST (@XX as char (20)) CONVERT (char), @XX) Cast (0 as bit) --Simple Case function Case Sex When ' 1 ' Then ' men ' When ' 2 ' then ' women ' Else ' other ' end --case search function case If sex = ' 1 ' Then ' man ' When sex = ' 2 ' Then ' women ' Else ' other ' end decla

--The first parameter is the string to be intercepted, the second argument is truncated from the first character, and the third argument is the length of the Intercept.--For example: Select SUBSTRING (' 12345678 ', 1,4) returns 1234--Select SUBSTRING (' 12345678 ', 0,4) returns 123Select SUBSTRING (' 12345678 ', 1,4)Grammar The CHARINDEX (expression1, Expression2

The substring function in SQL is used to grab a portion of a field data. The name of this function is not exactly the same in different repositories: Mysql:substr (), SUBSTRING () Oracle:substr () SQL server:substring () The most commonly used methods are as follows (here we use SUBSTR () as an ex

If you want to view the dynamic SQL of DB2, use snapshot to view it. The following describes how to view the dynamic SQL of DB2. We hope this will help you learn about the dynamic SQL of DB2. Use event monitor to view the executio

No matterProgramIt is still a stored procedure, so we need to develop a good habit of commenting!Not long-winded. Update a set filename = substring (filename, charindex ('/', filename) + 1, Len (filename ))Ha ~ Recently, I like databases and regular expressions! Raiserror Severity Level of message association defined by the user. You can use a severity level ranging from 0 to 18. The severity levels between 19 and 25 can only beSysAdminUsed by fix

The following article describes how to correctly connect an SQL Server database to a DB2 Server, the following describes the actual operation steps for connecting an SQL Server database to a DB2 Server. I hope this will help you in your future studies. SQL, Server, ServerSQL

Before you start About this series These six DB2 SQL Procedure Developer Tutorials Discuss all the basic constructs and methods of SQL procedural Language, and explain how to use SQL procedural Language in stored procedures, UDF, and triggers. Includes error handling and deployment. Also discusses some of the

Today, we mainly describe the correct implementation of connecting SQL Server databases to the DB2 connection Server. We all know that the interconnection between different database platforms is generally called a heterogeneous service, currently, different databases can achieve such Heterogeneous Interconnection, but the specific implementation technologies of different vendors are different, such: In

Before you start About this series This series, which contains 6 DB2 SQL Procedure Developer tutorials, covers all the basic structures and methods of SQL procedural Language (SQL PL) and shows how to store procedures, user-defined functions, and triggers, Includes the use of SQL