{"id":3053,"date":"2024-02-03T08:56:49","date_gmt":"2024-02-03T00:56:49","guid":{"rendered":"https:\/\/www.dpriver.com\/blog\/?p=3053"},"modified":"2026-05-25T17:13:24","modified_gmt":"2026-05-25T09:13:24","slug":"sql-visualizer-online","status":"publish","type":"post","link":"https:\/\/www.dpriver.com\/blog\/sql-visualizer-online\/","title":{"rendered":"SQL Visualizer Online: Visualize Queries, Joins, ER Diagrams &#038; Lineage"},"content":{"rendered":"<p>A SQL visualizer converts SQL queries into diagrams \u2014 either showing <strong>what a single query does<\/strong>, step by step, or mapping <strong>how data flows<\/strong> across tables, joins, and columns. Below you can try both, free and in your browser.<\/p>\n<div style=\"display:flex;flex-wrap:wrap;gap:20px;margin:32px 0;\">\n<div style=\"flex:1 1 300px;display:flex;flex-direction:column;border:1px solid #e2e8f0;border-radius:12px;padding:24px;background:#faf5ff;\">\n<h3 style=\"margin:0 0 8px;font-size:19px;\">\ud83d\udd0d Understand what one query does<\/h3>\n<p style=\"margin:0 0 18px;flex-grow:1;\">Paste a SELECT and get an interactive <strong>logic-flow diagram<\/strong> \u2014 sources \u2192 joins \u2192 filters \u2192 aggregates \u2192 window functions, in true execution order. Click any node to jump to the matching SQL. No signup, runs in your browser.<\/p>\n<div><a href=\"https:\/\/www.dpriver.com\/sql-intent-visualizer\/?utm_source=dpriver&amp;utm_medium=seo&amp;utm_campaign=sql_visualizer&amp;utm_content=intent_chooser_cta\" target=\"_blank\" rel=\"noreferrer noopener\" style=\"display:inline-block;padding:14px 26px;background:linear-gradient(135deg,#7c3aed,#6366f1);color:#ffffff;font-weight:600;font-size:16px;line-height:1.2;text-decoration:none;border-radius:8px;box-shadow:0 2px 6px rgba(124,58,237,0.35);\">Try the SQL Intent Visualizer \u2192<\/a><\/div>\n<\/div>\n<div style=\"flex:1 1 300px;display:flex;flex-direction:column;border:1px solid #e2e8f0;border-radius:12px;padding:24px;background:#eff6ff;\">\n<h3 style=\"margin:0 0 8px;font-size:19px;\">\ud83d\udd17 Map data lineage &amp; ER diagrams<\/h3>\n<p style=\"margin:0 0 18px;flex-grow:1;\">Trace <strong>column-level data lineage<\/strong> across queries, views, and stored procedures \u2014 plus auto-generated ER diagrams \u2014 over 20+ SQL dialects. Built for documenting and auditing whole pipelines.<\/p>\n<div><a href=\"https:\/\/sqlflow.gudusoft.com\/?utm_source=dpriver&amp;utm_medium=seo&amp;utm_campaign=sql_visualizer&amp;utm_content=lineage_chooser_cta\" target=\"_blank\" rel=\"noreferrer noopener\" style=\"display:inline-block;padding:14px 26px;background:linear-gradient(135deg,#2563eb,#0ea5e9);color:#ffffff;font-weight:600;font-size:16px;line-height:1.2;text-decoration:none;border-radius:8px;box-shadow:0 2px 6px rgba(37,99,235,0.35);\">Open SQLFlow Lineage \u2192<\/a><\/div>\n<\/div>\n<\/div>\n<h2 class=\"wp-block-heading\">What Is a SQL Visualizer?<\/h2>\n<p>A SQL visualizer, also known as a database visualization tool or SQL query visualizer, is a software application that helps developers, data engineers, and analysts interact with and understand SQL queries visually. Instead of reading raw SQL text, you see how tables connect, where data flows, and how joins link columns across schemas.<\/p>\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/sqlflow.gudusoft.com\/?utm_source=dpriver&amp;utm_medium=seo&amp;utm_campaign=sql_visualizer&amp;utm_content=hero_gif\" target=\"_blank\" rel=\"noreferrer noopener\"><img decoding=\"async\" src=\"https:\/\/www.gudusoft.com\/wp-content\/uploads\/2021\/01\/sqlflow-intro.gif\" alt=\"SQL visualizer showing SQL query converted to data lineage diagram\"\/><\/a><figcaption class=\"wp-element-caption\">SQLFlow SQL visualizer \u2014 SQL query to diagram in seconds<\/figcaption><\/figure>\n<p>SQL visualizers that support data lineage analysis represent how data flows from source to destination within a database system. This is especially useful for understanding dependencies and relationships between tables and columns in complex queries.<\/p>\n<h2 class=\"wp-block-heading\">Two Ways to Visualize SQL: Intent and Lineage<\/h2>\n<p>&#8220;Visualizing SQL&#8221; actually covers two different jobs, and the right tool depends on which one you&#8217;re doing:<\/p>\n<ul class=\"wp-block-list\">\n<li><strong>Understand a single query&#8217;s logic<\/strong> \u2014 what does this 200-line SELECT actually do? You want to see the order operations run in, how CTEs feed each other, and what each window function computes. The <strong>SQL Intent Visualizer<\/strong> is built for this.<\/li>\n<li><strong>Map data flow across many queries<\/strong> \u2014 where does this column come from, and what breaks if I change it? You want column-level lineage and ER diagrams across views, stored procedures, and whole pipelines. <strong>SQLFlow<\/strong> is built for this.<\/li>\n<\/ul>\n<p>Both turn SQL into diagrams. One explains <em>meaning<\/em>; the other maps <em>movement<\/em>.<\/p>\n<h2 class=\"wp-block-heading\">Visualize Query Intent with the SQL Intent Visualizer<\/h2>\n<p>Ever opened a 200-line SQL query and had no idea what it actually does? The <a href=\"https:\/\/www.dpriver.com\/sql-intent-visualizer\/?utm_source=dpriver&amp;utm_medium=seo&amp;utm_campaign=sql_visualizer&amp;utm_content=intent_section_link\" target=\"_blank\" rel=\"noreferrer noopener\">SQL Intent Visualizer<\/a> turns any SELECT into an interactive logic-flow diagram. It shows how data moves from your source tables through joins, filters, aggregations, and window functions to the final result \u2014 in the order SQL really executes, rather than the order it&#8217;s written. Click any node to jump straight to the matching SQL, expand CTEs and subqueries inline, and get plain-English, step-by-step explainers for tricky window functions like ROW_NUMBER, RANK, and SUM OVER.<\/p>\n<ul class=\"wp-block-list\">\n<li><strong>Logic-flow graph<\/strong> of every SELECT: sources \u2192 joins \u2192 filters \u2192 aggregates \u2192 windows \u2192 output, in true execution order.<\/li>\n<li><strong>Click-to-trace<\/strong> \u2014 select a node and the exact SQL fragment highlights, and back again.<\/li>\n<li><strong>CTEs &amp; subqueries<\/strong> expand inline so you can drill into multi-stage pipelines.<\/li>\n<li><strong>Window-function explainer<\/strong> \u2014 a step-by-step lane visualization for ROW_NUMBER, RANK, DENSE_RANK, LAG\/LEAD, and running SUM\/AVG\/COUNT.<\/li>\n<li><strong>Multi-dialect<\/strong>, powered by the same General SQL Parser engine behind dpriver&#8217;s other tools.<\/li>\n<\/ul>\n<p>Paste your query, pick your dialect, and read the intent behind the SQL in seconds \u2014 no signup, runs in your browser.<\/p>\n<p><a href=\"https:\/\/www.dpriver.com\/sql-intent-visualizer\/?utm_source=dpriver&amp;utm_medium=seo&amp;utm_campaign=sql_visualizer&amp;utm_content=intent_section_cta\" target=\"_blank\" rel=\"noreferrer noopener\" style=\"display:inline-block;padding:14px 26px;background:linear-gradient(135deg,#7c3aed,#6366f1);color:#ffffff;font-weight:600;font-size:16px;line-height:1.2;text-decoration:none;border-radius:8px;box-shadow:0 2px 6px rgba(124,58,237,0.35);\">Try the SQL Intent Visualizer \u2192<\/a><\/p>\n<h2 class=\"wp-block-heading\">SQL Query to Diagram Example<\/h2>\n<p>Below is a real example. The SQL joins two tables \u2014 <code>orders<\/code> and <code>customers<\/code> \u2014 and selects several columns from each.<\/p>\n<pre class=\"wp-block-code\"><code>SELECT o.order_id oid, o.customer_id cid, o.order_total ottl,\no.sales_rep_id sid, c.credit_limit cl, c.cust_email cem\nFROM orders o, customers c\nWHERE o.customer_id = c.customer_id;<\/code><\/pre>\n<p>The SQL visualizer parses the query and generates the data lineage diagram below, showing column-level relationships between <code>orders<\/code> and <code>customers<\/code>:<\/p>\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/sqlflow.gudusoft.com\/?utm_source=dpriver&amp;utm_medium=seo&amp;utm_campaign=sql_visualizer&amp;utm_content=example_image\" target=\"_blank\" rel=\"noreferrer noopener\"><img decoding=\"async\" loading=\"lazy\" width=\"1024\" height=\"305\" src=\"https:\/\/www.dpriver.com\/blog\/wp-content\/uploads\/2024\/02\/\u56fe\u7247-3-1024x305.png\" alt=\"SQL visualizer data lineage diagram showing column relationships between orders and customers tables\" class=\"wp-image-3067\" srcset=\"https:\/\/www.dpriver.com\/blog\/wp-content\/uploads\/2024\/02\/\u56fe\u7247-3-1024x305.png 1024w, https:\/\/www.dpriver.com\/blog\/wp-content\/uploads\/2024\/02\/\u56fe\u7247-3-300x89.png 300w, https:\/\/www.dpriver.com\/blog\/wp-content\/uploads\/2024\/02\/\u56fe\u7247-3-768x228.png 768w, https:\/\/www.dpriver.com\/blog\/wp-content\/uploads\/2024\/02\/\u56fe\u7247-3.png 1419w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/a><figcaption class=\"wp-element-caption\">Column-level lineage from a JOIN query \u2014 generated by SQLFlow<\/figcaption><\/figure>\n<p><a href=\"https:\/\/sqlflow.gudusoft.com\/?utm_source=dpriver&amp;utm_medium=seo&amp;utm_campaign=sql_visualizer&amp;utm_content=example_text_cta\" target=\"_blank\" rel=\"noreferrer noopener\">Visualize this SQL in SQLFlow \u2192<\/a><\/p>\n<h2 class=\"wp-block-heading\">What Can a SQL Visualizer Show?<\/h2>\n<ul class=\"wp-block-list\">\n<li><strong>Tables<\/strong> \u2014 which tables a query reads from or writes to<\/li>\n<li><strong>Joins<\/strong> \u2014 how tables are linked through <code>JOIN<\/code>, implicit join conditions, or subqueries<\/li>\n<li><strong>Columns<\/strong> \u2014 which columns are selected, filtered, or transformed<\/li>\n<li><strong>Data lineage<\/strong> \u2014 how data flows from source columns through transformations to output columns<\/li>\n<li><strong>ER diagrams<\/strong> \u2014 entity-relationship structure inferred directly from SQL schema or queries<\/li>\n<li><strong>ETL flow<\/strong> \u2014 the full extract-transform-load path across stored procedures or multi-step pipelines<\/li>\n<\/ul>\n<h2 class=\"wp-block-heading\">Using a SQL Visualizer to Generate ER Diagrams<\/h2>\n<p>SQL visualizers can generate Entity-Relationship (ER) diagrams by analyzing the underlying database schema or SQL DDL statements. The tool identifies entities (tables), attributes (columns), and relationships (foreign keys, join conditions) and represents them graphically.<\/p>\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/sqlflow.gudusoft.com\/?utm_source=dpriver&amp;utm_medium=seo&amp;utm_campaign=sql_visualizer&amp;utm_content=er_diagram\" target=\"_blank\" rel=\"noreferrer noopener\"><img decoding=\"async\" loading=\"lazy\" width=\"1024\" height=\"757\" src=\"https:\/\/www.dpriver.com\/blog\/wp-content\/uploads\/2024\/02\/\u5fae\u4fe1\u622a\u56fe_20240203155904-1024x757.png\" alt=\"ER diagram generated by SQL visualizer from SQL queries\" class=\"wp-image-3059\" srcset=\"https:\/\/www.dpriver.com\/blog\/wp-content\/uploads\/2024\/02\/\u5fae\u4fe1\u622a\u56fe_20240203155904-1024x757.png 1024w, https:\/\/www.dpriver.com\/blog\/wp-content\/uploads\/2024\/02\/\u5fae\u4fe1\u622a\u56fe_20240203155904-300x222.png 300w, https:\/\/www.dpriver.com\/blog\/wp-content\/uploads\/2024\/02\/\u5fae\u4fe1\u622a\u56fe_20240203155904-768x568.png 768w, https:\/\/www.dpriver.com\/blog\/wp-content\/uploads\/2024\/02\/\u5fae\u4fe1\u622a\u56fe_20240203155904.png 1235w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/a><figcaption class=\"wp-element-caption\">ER diagram generated from SQL by SQLFlow<\/figcaption><\/figure>\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/sqlflow.gudusoft.com\/?utm_source=dpriver&amp;utm_medium=seo&amp;utm_campaign=sql_visualizer&amp;utm_content=er_diagram_2\" target=\"_blank\" rel=\"noreferrer noopener\"><img decoding=\"async\" loading=\"lazy\" width=\"855\" height=\"586\" src=\"https:\/\/www.dpriver.com\/blog\/wp-content\/uploads\/2024\/02\/\u56fe\u7247-1.png\" alt=\"SQL visualizer ER diagram showing table relationships\" class=\"wp-image-3057\" srcset=\"https:\/\/www.dpriver.com\/blog\/wp-content\/uploads\/2024\/02\/\u56fe\u7247-1.png 855w, https:\/\/www.dpriver.com\/blog\/wp-content\/uploads\/2024\/02\/\u56fe\u7247-1-300x206.png 300w, https:\/\/www.dpriver.com\/blog\/wp-content\/uploads\/2024\/02\/\u56fe\u7247-1-768x526.png 768w\" sizes=\"(max-width: 855px) 100vw, 855px\" \/><\/a><\/figure>\n<p>Metadata about tables and columns \u2014 data types, constraints, and primary\/foreign key relationships \u2014 is displayed alongside the visual representation. Users can filter the visualization by data type or specific columns to focus on the parts of a schema that matter.<\/p>\n<h2 class=\"wp-block-heading\">SQL Visualizer vs SQL Formatter vs SQL Parser<\/h2>\n<figure class=\"wp-block-table\">\n<table>\n<thead>\n<tr style=\"background:#f0f4f8\">\n<th style=\"padding:8px 12px;border:1px solid #ddd\">Tool<\/th>\n<th style=\"padding:8px 12px;border:1px solid #ddd\">What it does<\/th>\n<th style=\"padding:8px 12px;border:1px solid #ddd\">Output<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"padding:8px 12px;border:1px solid #ddd\"><strong>SQL Formatter<\/strong><\/td>\n<td style=\"padding:8px 12px;border:1px solid #ddd\">Reformats SQL for readability \u2014 indentation, casing, line breaks<\/td>\n<td style=\"padding:8px 12px;border:1px solid #ddd\">Formatted SQL text<\/td>\n<\/tr>\n<tr style=\"background:#f9fafb\">\n<td style=\"padding:8px 12px;border:1px solid #ddd\"><strong>SQL Parser<\/strong><\/td>\n<td style=\"padding:8px 12px;border:1px solid #ddd\">Breaks SQL into a structured syntax tree for analysis or transformation<\/td>\n<td style=\"padding:8px 12px;border:1px solid #ddd\">AST \/ parse tree<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:8px 12px;border:1px solid #ddd\"><strong>SQL Intent Visualizer<\/strong><\/td>\n<td style=\"padding:8px 12px;border:1px solid #ddd\">Shows what a single query does \u2014 execution-order logic flow through joins, filters, aggregates, and window functions<\/td>\n<td style=\"padding:8px 12px;border:1px solid #ddd\">Interactive logic-flow diagram<\/td>\n<\/tr>\n<tr style=\"background:#f9fafb\">\n<td style=\"padding:8px 12px;border:1px solid #ddd\"><strong>SQL Visualizer (SQLFlow)<\/strong><\/td>\n<td style=\"padding:8px 12px;border:1px solid #ddd\">Maps data flow across queries \u2014 column-level lineage and ER diagrams over whole pipelines<\/td>\n<td style=\"padding:8px 12px;border:1px solid #ddd\">Lineage graph \/ ER diagram<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/figure>\n<p>Need column-level data lineage across hundreds of SQL files? <a href=\"https:\/\/sqlflow.gudusoft.com\/?utm_source=dpriver&amp;utm_medium=seo&amp;utm_campaign=sql_visualizer&amp;utm_content=lineage_cta\" target=\"_blank\" rel=\"noreferrer noopener\">See SQLFlow for enterprise SQL lineage \u2192<\/a><\/p>\n<h2 class=\"wp-block-heading\">When Data Teams Use SQL Visualization<\/h2>\n<ul class=\"wp-block-list\">\n<li><strong>Review complex SQL<\/strong> \u2014 understand a long query faster by seeing the logic flow instead of tracing every clause manually<\/li>\n<li><strong>Understand inherited queries<\/strong> \u2014 onboard faster when taking over a codebase or ETL pipeline<\/li>\n<li><strong>Document ETL logic<\/strong> \u2014 generate diagrams from existing SQL for documentation and compliance<\/li>\n<li><strong>Analyze impact before schema changes<\/strong> \u2014 see which columns and downstream queries a change will affect<\/li>\n<li><strong>Validate AI-generated SQL<\/strong> \u2014 visually confirm that LLM-generated SQL connects the right tables and columns before running it in production<\/li>\n<\/ul>\n<h2 class=\"wp-block-heading\">Try SQL Visualization Now<\/h2>\n<p>Gudu SQLFlow is a SQL visualizer that supports column-level data lineage across <strong>over 20 SQL dialects<\/strong>, including Oracle, SQL Server, MySQL, PostgreSQL, Snowflake, BigQuery, Redshift, and more. It parses SQL queries, stored procedures, and DDL statements and generates interactive lineage graphs and ER diagrams.<\/p>\n<p>To understand what a single query <em>does<\/em>, the SQL Intent Visualizer turns it into a logic-flow diagram in seconds \u2014 free and in your browser. Pick the tool that matches what you need to see:<\/p>\n<div style=\"display:flex;flex-wrap:wrap;gap:14px;margin:24px 0;\">\n<a href=\"https:\/\/www.dpriver.com\/sql-intent-visualizer\/?utm_source=dpriver&amp;utm_medium=seo&amp;utm_campaign=sql_visualizer&amp;utm_content=intent_bottom_cta\" target=\"_blank\" rel=\"noreferrer noopener\" style=\"display:inline-block;padding:14px 26px;background:linear-gradient(135deg,#7c3aed,#6366f1);color:#ffffff;font-weight:600;font-size:16px;line-height:1.2;text-decoration:none;border-radius:8px;box-shadow:0 2px 6px rgba(124,58,237,0.35);\">Try the SQL Intent Visualizer \u2192<\/a><br \/>\n<a href=\"https:\/\/sqlflow.gudusoft.com\/?utm_source=dpriver&amp;utm_medium=seo&amp;utm_campaign=sql_visualizer&amp;utm_content=lineage_bottom_cta\" target=\"_blank\" rel=\"noreferrer noopener\" style=\"display:inline-block;padding:14px 26px;background:linear-gradient(135deg,#2563eb,#0ea5e9);color:#ffffff;font-weight:600;font-size:16px;line-height:1.2;text-decoration:none;border-radius:8px;box-shadow:0 2px 6px rgba(37,99,235,0.35);\">Open SQLFlow Lineage \u2192<\/a>\n<\/div>\n<p><a href=\"https:\/\/www.dpriver.com\/pp\/enterprise-inquiry.htm?utm_source=dpriver&amp;utm_medium=seo&amp;utm_campaign=sql_visualizer&amp;utm_content=bottom_inquiry\" target=\"_blank\" rel=\"noreferrer noopener\">Talk to us about SQL visualization for your team \u2192<\/a><\/p>\n<p>All lineage and ER diagrams in this post were generated by <a href=\"https:\/\/sqlflow.gudusoft.com\/?utm_source=dpriver&amp;utm_medium=seo&amp;utm_campaign=sql_visualizer&amp;utm_content=attribution\" target=\"_blank\" rel=\"noreferrer noopener\">Gudu SQLFlow<\/a>.<\/p>\n<h2 class=\"wp-block-heading\">FAQ<\/h2>\n<h3 class=\"wp-block-heading\">What is a SQL visualizer?<\/h3>\n<p>A SQL visualizer converts SQL queries into diagrams that show tables, joins, columns, and data lineage relationships. It helps developers and data teams understand complex queries visually instead of reading raw SQL text.<\/p>\n<h3 class=\"wp-block-heading\">What&#8217;s the difference between the SQL Intent Visualizer and SQLFlow?<\/h3>\n<p>The SQL Intent Visualizer explains what a single query does \u2014 it turns one SELECT into a logic-flow diagram showing execution order, joins, filters, aggregations, and window functions. SQLFlow maps how data flows across many queries, views, and stored procedures, producing column-level data lineage and ER diagrams for entire pipelines. Use the Intent Visualizer to understand a query; use SQLFlow to trace lineage across a system.<\/p>\n<h3 class=\"wp-block-heading\">Can I visualize joins in SQL?<\/h3>\n<p>Yes. A SQL visualizer parses JOIN conditions \u2014 including INNER JOIN, LEFT JOIN, RIGHT JOIN, and implicit comma joins \u2014 and displays the table relationships and column mappings as a graph.<\/p>\n<h3 class=\"wp-block-heading\">Can a SQL visualizer show data lineage?<\/h3>\n<p>Yes. A SQL visualizer can trace how columns flow from source tables through transformations and joins to output columns, giving you column-level data lineage from a single query or across an entire SQL pipeline.<\/p>\n<h3 class=\"wp-block-heading\">Does it support stored procedures?<\/h3>\n<p>Advanced SQL visualizers like SQLFlow support stored procedures, views, and multi-statement ETL scripts across major SQL dialects including Oracle PL\/SQL, SQL Server T-SQL, MySQL, and PostgreSQL.<\/p>\n<h3 class=\"wp-block-heading\">Is my SQL uploaded or stored?<\/h3>\n<p>The SQL Intent Visualizer runs entirely in your browser \u2014 your SQL never leaves your machine. The SQLFlow online demo sends SQL to the server to generate diagrams; demo SQL is not retained or used for training. For enterprise use cases where SQL must stay on your infrastructure, Gudu offers on-premise deployment.<\/p>\n<p><script type=\"application\/ld+json\">\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What is a SQL visualizer?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"A SQL visualizer converts SQL queries into diagrams that show tables, joins, columns, and data lineage relationships. 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Try the SQL Intent Visualizer \u2192 \ud83d\udd17 Map data lineage &amp; ER diagrams Trace column-level data\u2026<\/p>\n","protected":false},"author":6,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[190],"tags":[],"blocksy_meta":{"styles_descriptor":{"styles":{"desktop":"","tablet":"","mobile":""},"google_fonts":[],"version":5}},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v19.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>SQL Visualizer Online: Visualize Queries, Joins, ER Diagrams &amp; Lineage<\/title>\n<meta name=\"description\" content=\"Visualize SQL queries as diagrams showing tables, joins, columns, and column-level data lineage. 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