When you insert new records into an SQL database, you may run into issues where you accidentally overwrite records that are already present due to a duplication issue. You can use a simple alteration ...
OK, so there is a table that is basically an audit trail, it is on MS SQL Server 05 and soon to be 08.<BR><BR>AuditTrail<BR>AuditID -- PK<BR>SomeFK -- FK to tie it back to the record<BR>FieldName -- ...
SQL Bulk Insert has been tuned over the years to work well with the Microsoft .NET Framework. This tutorial shows you how to take advantage of its power. SQL Bulk Insert is not a new technology. In ...
The indexes on a the tables of a large database make a huge difference in its performance and utility. Without an index, locating a single record in a large table can take several seconds; with the ...
Read this SQL tutorial to learn when to use SELECT, JOIN, subselects and UNION to access multiple tables with a single statement. It’s sometimes difficult to know which SQL syntax to use when ...
Adding an new row to a Word table is an easy task. Adding multiple rows is just as easy, if you know this simple trick. You probably know that you can add a row to the end of a table by pressing Tab ...
proc sql; create table proclib.paylist (IdNum char(4), Gender char(1), Jobcode char(3), Salary num, Birth num informat=date7. format=date7., Hired num informat=date7 ...
is the name for the constraint being specified. The first form of the CREATE TABLE statement creates tables that automatically map SQL data types to those supported by the SAS System. Use this form ...
A common SQL habit is to use SELECT * on a query, because it’s tedious to list all the columns you need. Plus, sometimes those columns may change over time, so why not just do things the easy way? But ...
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