| How to Fix Left Truncation, Conceptually |
| Figure 1 shows several customers throughout time, on the line of time of calendar. Two dates are accentuated; the more is the left date of truncation early and the more is the day of the countable decree later. Only the customers who are in activity after the left date of truncation are in the database. |
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| SQL Server 2012 : Performance Analysis of Logs - Getting Started with PAL |
| The Performance Analysis of Logs (PAL) tool is a free utility for analyzing PerfMon counter logs and creating reports highlighting important areas by severity. The report color-codes counters to display problem areas based on thresholds defined by subject matter experts in the support teams at Microsoft. |
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| SQL Server 2012 : Query Plans (part 3) - Reading Query Plans |
| Because you are looking at the inner workings of the Query Optimizer, and because this is a feature of SQL Server that is constantly evolving, installing any service pack or patch can alter the behavior of the Query Optimizer, and therefore display different results. |
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| SQL Server 2012 : Query Plans (part 2) - Query Plan Operators |
| Join operators enable SQL Server to find matching rows between two tables. Prior to SQL Server 2005, there was only a single join type, the nested loop join, but since then additional join types have been added, and SQL Server now provides the three join types described in Table 1. |
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| SQL Server 2012 : Query Plans (part 1) |
| Now that you have seen how your T-SQL is optimized, the next step is to look at the query plan that the Query Optimizer generated for it. There are several ways to view query plans, but perhaps the easiest is to view the graphical plan using SQL Server Management Studio. |
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