另外, contains包含的列都必须来自同一个表, 不能跨表, 例如where contains(a.ProductDesc, b.ProductName, '*cad*'), 这样是不行的. 3.Lucene全文检索 SQL server全文检索不灵了, 只能找第三方的方案了, 首当其冲的就是Lucene了, 但在.net下, Lucene却很不顺当. NLucene是将 Lucene 从 Java 移植到...
The wildcard functionality in SQL applies to all vendors of SQL (e.g. Oracle, SQL Server, MySQL, PostgreSQL). It allows you to do partial matching on a string and is a useful feature of SQL.
SQL Server 2008 R2 (10.50.x) and SQL Server 2008 R2 (10.50.x) Native Client (SNAC) support wildcard certificates. SNAC has since been deprecated and replaced with the Microsoft OLE DB Driver for SQL Server and Microsoft ODBC Driver for...
When you can, reject input that contains the following characters. Input characterMeaning in Transact-SQL ;Query delimiter. 'Character data string delimiter. --Single-line comment delimiter. Text following--until the end of that line isn't evaluated by the server. ...
This is an improvement over SQL Server 2000, which uses a guess for selectivity when any wildcard other than a trailing wildcard % is used in the LIKE pattern, and it has limited accuracy in its estimates in that case. The String Index field in the first row set returned by DBCC SHOW...
The following example searches for the rows in which the LargePhotoFileName column has the characters green_, and uses the ESCAPE option because _ is a wildcard character. If you don't specify the ESCAPE option, the query searches for any description values that contain the word green followe...
The SQL Server full-text search engine identifies important words and phrases. No special meaning is given to any of the reserved keywords or wildcard characters that typically have meaning when specified in the <contains_search_condition> parameter of the CONTAINS predicate. Full-text predicates ...
SQL Server 2008 R2 (10.50.x) and SQL Server 2008 R2 (10.50.x) Native Client (SNAC) support wildcard certificates. SNAC has since been deprecated and replaced with the Microsoft OLE DB Driver for SQL Server and Microsoft ODBC Driver for SQL Server. Other clients might not support wildcard...
Specifies a PSCredential object that contains the credentials for a SQL Server login that has permission to perform this operation. Expand table Type: PSCredential Position: Named Default value: None Required: False Accept pipeline input: False Accept wildcard characters: False -Database Specifies th...
The following example searches for the rows in which the LargePhotoFileName column has the characters green_, and uses the ESCAPE option because _ is a wildcard character. If you don't specify the ESCAPE option, the query searches for any description values that contain the word green followe...