SLT Fundamentals & Architecture

In SLT, a table shows sequence number 40 and another shows 30. Which loads with higher priority, and what do 30 and 40 signify?

Among SAP's real-time replication tools, which one uses a trigger-based methodology to move data in real time, and what distinguishes it from SAP Replication Server?

A colleague says SLT captures changes by reading the source database transaction log. Why is that wrong?

Both SLT and SAP HANA smart data integration (SDI) can replicate into SAP HANA in real time. What's the defining difference in how each connects to sources?

Operational data provisioning (ODP) and SLT both feed SAP HANA. Which delivers true real-time replication, and which is near-real-time?

Where in SLT do you confirm how many records were read and calculated for a table's load?

In an SLT-to-BW/4HANA scenario, what makes a data transfer process run automatically in real time instead of only on manual execution?

SLT splits replication into two phases. What does the initial load do that the ongoing replication phase does not, and can the source stay online?

During an SLT initial load the source is still live and users keep editing a table. Why aren't those in-flight changes lost when the delta phase begins?

The target SAP HANA system goes offline for two hours while SLT replication is running. What happens to source changes during the outage?

In SLT's data-transfer handshake, at what exact point are the change records deleted from the source logging tables?

For an ABAP source vs a non-ABAP source, where do SLT's read modules run, and what connection type is used?

What are the minimum platform prerequisites for the SLT (SAP LT Replication Server) system itself?

Is SLT strictly a one-way (source-to-target) replication tool?

You need the authoritative list of non-SAP source databases SLT supports. Where do you look rather than trusting a generic 'Oracle/Db2/SQL Server' answer?

SLT email notifications rely on a background job. What does that job actually do, and how often?

What is SLT replication logging for, and what is its default data retention period?

In SLT replication logging, which table stores data read from SAP cluster tables versus transparent/pool tables?

A record in a replicated source table gets archived. By default, what happens to the matching row in the target?

You choose 'Do Not Delete Target Table Record' so source archiving won't remove target rows. What extra step is mandatory, and what does SLT NOT validate?

SLT data filtering for a migration lets you limit rows by field values. Name typical fields used and why filtering matters.

Feeding SAP Data Intelligence Cloud, your source has null values that the target rejects. What SLT feature fixes this and how?

After a network blip, SLT replication throws duplicate-key constraint violations on the target. What setting resolves it and why?

The SLT health-check / notification job is described as lightweight. Which checks does that single job run?

In the SLT notification setup, how do you make sure the DBA gets errors but the functional team only gets informational messages?

A large SLT migration is running too slowly on one application server. What's the standard tactic to cut runtime, and where is it configured?

For every table registered for real-time replication, how many triggers does SLT create and what are they named for?

What keeps delta data flowing to the target in real time without anyone pressing a button?

In an SLT logging table, what is the role of the IUUC_SEQUENCE column, and why does it matter for correctness?

In an SLT logging table, what do the values I, U, D, and A mean in the IUUC_OPERAT_FLAG column?

SLT is said to create 'three or four' triggers on a source table. What determines whether it's four, and what does the fourth handle?

When an update changes a table's KEY columns, why does SLT log TWO rows instead of one, and how does that differ from a normal update?

When defining an SLT source connection, what decides whether you enter an RFC destination or a database connection?

What does the 'No. of Data Transfer Jobs' field control, and what does it depend on?

SLT generates a unique MTID. Is it per table or per configuration, and why does that scope matter?

In an SLT configuration, which tab shows the triggers, logging tables, and proxy structures for all tables?

You want to inspect the logging-table structure and see when triggers were created in the source. Which transactions do you use for each?

What's the recommended replication-user strategy on the target SAP HANA side, and why?

Table DMC_C_WL_TABL_OP restricts what the RFC user may do per table. Which action fields does it expose?

You flag REPLICATE_DATA for a table in DMC_C_WL_TABL_OP but replication still fails. What mandatory companion flag is easy to forget?

You're filtering an alphanumeric field that holds only digits (e.g., VARCHAR(10)) for values > 10,000 in LTRS. What formatting mistake breaks the filter?

Generic table ranges (parallel replication by hash) add a field to the logging table. What is it, and when must it be configured?

For SLT generic-range parallelization, what range does the hash value span, and what makes a good grouping key field?

When defining SLT range criteria for parallel loading, what rule about key fields and coverage must hold?

How does SLT-based data consolidation differ from a simple one-to-one replication, and what can the target layout be?

SLT is offered as a real-time reporting enabler. What is the actual mechanism that keeps reports current?

You need to turn replication logging on for an already-running configuration. Which transaction do you use?