compare dates sql server

Label:New XSQL Schema compare-version 5Compare the schemas of the SQL Server databases, review differences, generate synchronization script and execute It-xsql Schema Compare makes database change management easy.XSQL Schema Compare supports

Oracle query: Select Length (' Sqlmag ') "Length in characters" from DUAL; The above query is written under SQL Server: Select LEN (' Sqlmag ') "Length in Characters" Date Both of these systems have their own current date and time formats. Oracle acquisition date and in the following manner: Sysdate SQL Server i

length of a column changes, you should use the nvarchar character type, where you can store up to 4,000 characters. When the length of a column is fixed, you should use the Nchar character type, and you can store up to 4,000 characters at this time. When you use the Ntext data type, the column can store more than 4,000 characters.(4) Date and time data typeDate and time data types include datetime and smalldatetime two types of date and time data types are composed of valid

During the work period, the problem of exporting and importing data between databases of different versions is often involved. Simply sort it out and compare the performance. You are welcome to discuss and supplement some methods that are missing. 00. Create a test environment 01. use SQL Server Import and Export Tool 02. Use generate scripts 03. Use BCP

Tags: style blog http io color ar os using SPOriginal: SQL Server Enterprise Platform Management Practice reading notes--sql server shrinking a database for reasons of poor useThe database administrator sometimes needs to control the size of the file, may choose to shrink the file, or some data file condition to be del

awakened dream of people, missing is the inclusion index!!! About the importance of including indexes I've already mentioned this article, "How I handled 430 million records per day in SQL Server," and I didn't expect to get a second somersault here. Practice, really is too important!Let the SQL statement go through the index by creating a include indexAll right

1. Test data PreparationReference: tables in SQL Server access by Table Scan, index Scan, index Seek the experimental data in this blog to prepare. These two blogs use the same experimental data.Three ways to join in 2.SQL serverIn SQL Server, each join command, when execute

, the server executes the modification. Select this concurrency option optimistic with row versioning: this OPTIMISTIC concurrency control option is based on ROW version control. Use row version control. The table must have a version identifier, which can be used by the server to determine whether the row is changed after the cursor is read. In SQL

and will return an error. If the value is the same, the server executes the modification. Select this concurrency option optimistic with row versioning: this optimistic concurrency control option is based on Row version control. Use row version control. The table must have a version identifier, which can be used by the server to determine whether the row is changed after the cursor is read. In

When you create a table, you must assign a data type to each column in the table. This section describes some of the most common data types in SQL Server. Even if you create a custom data type, it must be based on a standard SQL Server data type. For example, you can use the following syntax to create a custom data typ

In order to optimize the performance of Microsoft SQL Server most effectively, you must be clear about where performance will be maximized in terms of changing circumstances and focus on these aspects. Otherwise, you may spend a lot of time and effort on these issues, while performance is not significantly improved.Most of the following information does not address performance issues caused by concurrent us

use an optional numeric format. SQL Server Returns the character data after numeric conversion through the STR function. However, this function does not have a convenient Format parameter. Oracle query: SELECT to_char (123.45, 99999999999999) from tabSELECT to_char (EXPIRY_DATE, DDMONYYYY) from tab The following are SQL Serv