Guides and release notes for SQL Server, PostgreSQL, MySQL, Oracle and SQLite developers. https://jamsql.com/blog/ 2026-10-05T00:00:00Z Jam SQL Studio https://jamsql.com/blog/2026-09-30-azure-storage-permission-errors/ 2026-09-30T00:00:00Z 2026-09-30T00:00:00Z

“This request is not authorized” in Azure Storage: which data role is missing, or which firewall, SAS, Shared Key or tenant setting refused the request.

https://jamsql.com/blog/2026-09-30-azurite-docker-gui/ 2026-09-30T00:00:00Z 2026-10-02T00:00:00Z

Azurite in Docker and docker compose: ports, volume, flags, the devstoreaccount1 connection string, fixes for common errors, and a GUI to browse it.

https://jamsql.com/blog/2026-09-26-common-sql-server-errors/ 2026-09-26T00:00:00Z 2026-09-26T00:00:00Z

The most common SQL Server errors (102, 207, 208, 156, 2812, 4104, 137, 8120), ranked from 60 days of app telemetry, with causes and T-SQL fixes.

https://jamsql.com/blog/2026-09-26-mysql-error-1175-safe-update-mode/ 2026-09-26T00:00:00Z 2026-09-26T00:00:00Z

MySQL error 1175 means safe update mode blocked an UPDATE or DELETE with no key in its WHERE. What triggers it, three safe fixes, and other engines.

https://jamsql.com/blog/2026-09-26-print-raiserror-raise-notice-dbms-output/ 2026-09-26T00:00:00Z 2026-09-26T00:00:00Z

Measured: when SQL Server PRINT and RAISERROR WITH NOWAIT, PostgreSQL RAISE NOTICE, Oracle DBMS_OUTPUT and MySQL warnings actually reach the client.

https://jamsql.com/blog/2026-09-26-visual-query-editor/ 2026-09-26T00:00:00Z 2026-09-26T00:00:00Z

Jam SQL Studio's Visual Query Editor shows the statement under your cursor as clause cards you can edit, in a Query tab's Visual view or a compact popover.

https://jamsql.com/blog/2026-09-25-azure-storage-blobs-queues-tables/ 2026-09-25T00:00:00Z 2026-10-02T00:00:00Z

Jam SQL Studio 1.5.3 connects to Azure Storage and Azurite: blob transfers, Data Lake directories and ACLs, SMB and NFS shares, queues and Table entities.

https://jamsql.com/blog/2026-09-01-postgresql-cve-2026-14669-upgrade/ 2026-09-01T00:00:00Z 2026-09-01T00:00:00Z

PostgreSQL's Aug 2026 update fixes CVE-2026-14669, a to_char heap overflow any logged-in user can trigger. What it is, if you're exposed, how to patch.

https://jamsql.com/blog/2026-08-29-lookup-enums-reference-tables/ 2026-08-29T00:00:00Z 2026-08-29T00:00:00Z

Show the referenced row's name next to every foreign-key ID: lookup enums, reference tables marked once, and on-demand names for big tables.

https://jamsql.com/blog/2026-08-27-sql-server-connection-errors/ 2026-08-27T00:00:00Z 2026-08-27T00:00:00Z

Login failed 18456, pre-login handshake, connection timeout expired, semaphore timeout, pool exhaustion — ranked causes and fixes from real telemetry.

https://jamsql.com/blog/2026-08-27-whats-new-oracle-26ai/ 2026-08-27T00:00:00Z 2026-08-27T00:00:00Z

What's new in Oracle AI Database 26ai: the 23ai rename explained, SQL assertions, QUALIFY, Select AI, vector index upgrades — and what's really 23ai.

https://jamsql.com/blog/2026-08-27-where-sql-clients-store-connections/ 2026-08-27T00:00:00Z 2026-08-27T00:00:00Z

Exact paths where SSMS, Azure Data Studio, DBeaver, MySQL Workbench, TablePlus, ODBC, and SQL Developer store saved connections — and how to move them.

https://jamsql.com/blog/2026-08-25-import-excel-into-sql-database/ 2026-08-25T00:00:00Z 2026-08-25T00:00:00Z

Import Excel (.xlsx) into SQL Server, PostgreSQL, or MySQL three ways: a free browser converter, a desktop import wizard, or native bulk loaders.

https://jamsql.com/blog/2026-08-25-whats-new-sql-server-2025/ 2026-08-25T00:00:00Z 2026-09-26T00:00:00Z

What's new in SQL Server 2025 (GA Nov 18, 2025): native JSON type, VECTOR columns and vector search, AI models in T-SQL, regex — and what's still preview.

https://jamsql.com/blog/2026-08-22-whats-new-mysql-26-7/ 2026-08-22T00:00:00Z 2026-08-22T00:00:00Z

What's new in MySQL 26.7 (July 28, 2026): calendar versioning, Change Stream Applier, post-quantum TLS, Thread Pool in Community — and no MySQL 9.8.

https://jamsql.com/blog/schema-and-data-compare-improvements/ 2026-08-13T00:00:00Z 2026-08-13T00:00:00Z

What's new in Schema and Data Compare: depth presets, shareable settings, single-transaction sync scripts, and ~20x faster SQL Server comparisons.

https://jamsql.com/blog/2026-07-11-postgis-spatial-support/ 2026-07-11T00:00:00Z 2026-07-15T00:00:00Z

Jam SQL Studio 1.4.15 maps geometry & geography from PostgreSQL/PostGIS, MySQL, SQL Server, Oracle and SQLite — peek maps, Map view, spatial filters.

https://jamsql.com/blog/2026-07-11-sql-pgq-graph-table-oracle-postgresql/ 2026-07-11T00:00:00Z 2026-09-26T00:00:00Z

SQL/PGQ property graphs in practice: GRAPH_TABLE on Oracle 23ai+ with live-tested syntax limits, and why PostgreSQL 19 Beta 4 dropped its version.

https://jamsql.com/blog/2026-07-09-query-azure-data-explorer-app-insights-desktop/ 2026-07-09T00:00:00Z 2026-07-15T00:00:00Z

Query Azure Data Explorer, Application Insights & Azure Monitor with KQL from a Mac, Windows, or Linux desktop app — IntelliSense, charts, read-only.

https://jamsql.com/blog/whats-new-postgresql-19/ 2026-07-09T00:00:00Z 2026-09-26T00:00:00Z

PostgreSQL 19 Beta 4 shipped Sep 24, 2026; RC due early October, GA planned for October. New features, new system views, and what beta 4 removed.

https://jamsql.com/blog/2026-07-07-oracle-apple-silicon-no-instant-client/ 2026-07-07T00:00:00Z 2026-07-07T00:00:00Z

Oracle on Apple Silicon: connect from an M-series Mac with no Instant Client, no Rosetta. Jam SQL Studio uses node-oracledb Thin mode — pure JavaScript.

https://jamsql.com/blog/2026-06-14-convert-sql-server-stored-procedures-to-postgresql/ 2026-06-14T00:00:00Z 2026-06-14T00:00:00Z

A worked example converting a T-SQL stored procedure to a PL/pgSQL function: parameters, DECLARE, INTO, result sets, OUTPUT params, and error handling.

https://jamsql.com/blog/2026-06-14-convert-sql-server-triggers-to-postgresql/ 2026-06-14T00:00:00Z 2026-06-14T00:00:00Z

Port T-SQL triggers to PostgreSQL: INSERTED/DELETED to NEW/OLD, the separate trigger function, and transition tables for true statement-level set logic.

https://jamsql.com/blog/2026-06-14-migrate-mysql-to-postgresql/ 2026-06-14T00:00:00Z 2026-06-14T00:00:00Z

Migrate MySQL or MariaDB tables to PostgreSQL: copy schema and data with tinyint(1)→boolean, AUTO_INCREMENT→IDENTITY, and unsigned handling.

https://jamsql.com/blog/2026-06-14-migrate-oracle-to-postgresql/ 2026-06-14T00:00:00Z 2026-06-14T00:00:00Z

Migrate Oracle tables to PostgreSQL: copy schema and data with VARCHAR2→varchar, NUMBER→numeric/int, DATE→timestamp, and CLOB→text translation.

https://jamsql.com/blog/2026-06-14-migrate-sql-server-to-mysql/ 2026-06-14T00:00:00Z 2026-06-14T00:00:00Z

Migrate SQL Server tables to MySQL: copy schema and data with bit→tinyint(1), uniqueidentifier→char(36), datetime2→datetime, and IDENTITY→AUTO_INCREMENT.

https://jamsql.com/blog/2026-06-14-t-sql-to-postgresql-function-cheat-sheet/ 2026-06-14T00:00:00Z 2026-06-14T00:00:00Z

Every common T-SQL function and its PostgreSQL equivalent: ISNULL, GETDATE, LEN, CHARINDEX, DATEADD, NEWID, IIF, plus the gotchas that don't error.

https://jamsql.com/blog/2026-06-13-migrate-sql-server-to-postgresql/ 2026-06-13T00:00:00Z 2026-06-14T00:00:00Z

Migrate SQL Server to PostgreSQL the interactive way: right-click a table, pick a Postgres target, and copy schema + data with automatic type translation.

https://jamsql.com/blog/2026-06-13-mssql-to-postgresql-data-type-mapping/ 2026-06-13T00:00:00Z 2026-06-13T00:00:00Z

Complete MSSQL ↔ PostgreSQL type mapping, both directions: bit→boolean, nvarchar→varchar, datetime2→timestamp, uniqueidentifier→uuid, and the edge cases.

https://jamsql.com/blog/2026-05-24-foreign-key-navigation-breadcrumb/ 2026-05-24T00:00:00Z 2026-09-23T00:00:00Z

Foreign-key clicks no longer spray new tabs: a clickable breadcrumb tree and a Single-Row Details View keep drill-downs in one Table Explorer tab.

https://jamsql.com/blog/2026-05-23-database-blueprint/ 2026-05-23T00:00:00Z 2026-06-01T00:00:00Z

Materialize a SQL Server, PostgreSQL, MySQL, Oracle, or SQLite database as a folder of .sql files, with refresh from DB, three-way merge, and a Git panel.

https://jamsql.com/blog/2026-05-20-filter-json-columns-sql/ 2026-05-20T00:00:00Z 2026-07-20T00:00:00Z

JSONPath sub-operators, peek popovers, declare-on-text guards, loose FKs and enums on JSON paths — what JSON support in a SQL client should feel like.

https://jamsql.com/blog/2026-05-20-polymorphic-loose-foreign-keys/ 2026-05-20T00:00:00Z 2026-07-20T00:00:00Z

Model polymorphic associations (commentable_id / commentable_type) without a real FK — source and target filters on loose foreign keys.

https://jamsql.com/blog/2026-05-15-enum-columns/ 2026-05-15T00:00:00Z 2026-05-20T00:00:00Z

Declare plain VARCHAR/INT columns as enums in Jam SQL Studio for a dropdown filter from MySQL ENUM, Postgres pg_enum, CHECK, or sampled DISTINCT.

https://jamsql.com/blog/migrate-from-mongodb-to-relational/ 2026-05-14T00:00:00Z 2026-09-26T00:00:00Z

Step-by-step MongoDB to SQL migration: inventory, BSON type mapping per engine, mongoexport to bulk load, CDC cutover, and checks that the data matches.

https://jamsql.com/blog/mongodb-alternatives-2026/ 2026-05-14T00:00:00Z 2026-09-26T00:00:00Z

MongoDB alternatives checked in September 2026: PostgreSQL jsonb, FerretDB on DocumentDB, Amazon DocumentDB 8.0, Oracle's MongoDB API and SQL Server 2025.

https://jamsql.com/blog/json-in-relational-databases-compared/ 2026-05-13T00:00:00Z 2026-09-26T00:00:00Z

PostgreSQL, MySQL, SQL Server, Oracle, SQLite — how their JSON support compares for document workloads, indexing, and replacing MongoDB. 2026 reference.

https://jamsql.com/blog/oracle-json-support-guide/ 2026-05-12T00:00:00Z 2026-07-07T00:00:00Z

Oracle JSON guide: JSON_VALUE, JSON_TABLE, the IS JSON constraint, native 21c JSON type, and 23ai's MongoDB-compatible API. When to migrate from MongoDB.

https://jamsql.com/blog/sqlite-json-support-guide/ 2026-05-06T00:00:00Z 2026-07-07T00:00:00Z

SQLite JSON guide: json1 default since 3.38, the -> and ->> operators, JSONB binary (3.45+), generated-column indexes, and when SQLite replaces MongoDB.

https://jamsql.com/blog/loose-foreign-keys-without-constraints/ 2026-05-05T00:00:00Z 2026-05-05T00:00:00Z

A loose foreign key is a logical column reference no constraint enforces. When to use it, how DBeaver/DataGrip/SSMS compare, plus Jam SQL Studio support.

https://jamsql.com/blog/sql-server-json-support-guide/ 2026-04-28T00:00:00Z 2026-09-26T00:00:00Z

SQL Server JSON: the native JSON type is GA in SQL Server 2025 and Azure SQL. JSON_VALUE, OPENJSON, ISJSON, JSON indexes, and how it compares to MongoDB.

https://jamsql.com/blog/mysql-json-column-guide/ 2026-04-21T00:00:00Z 2026-07-07T00:00:00Z

MySQL JSON column how-to: store documents in the native JSON type, query them with JSON_VALUE and JSON_EXTRACT, and index paths for fast lookups.

https://jamsql.com/blog/postgresql-json-jsonb-complete-guide/ 2026-04-14T00:00:00Z 2026-07-07T00:00:00Z

PostgreSQL json vs jsonb: storage, GIN indexes, the SQL/JSON path language, and whether jsonb replaces MongoDB. A practical guide with code for developers.

https://jamsql.com/blog/sql-editor-intellisense-beyond-autocomplete/ 2026-04-06T00:00:00Z 2026-04-06T00:00:00Z

Most SQL editors stop at autocomplete. Modern SQL IntelliSense: function parameter hints, column inlay hints, and inline result previews. Here is how.

https://jamsql.com/blog/query-editor-features-faster-sql/ 2026-04-06T00:00:00Z 2026-04-06T00:00:00Z

Column profiling, FK navigation, pin results, copy as INSERT, client-side filtering, and more. 10 query editor features that speed up daily SQL work.

https://jamsql.com/blog/prevent-accidental-production-queries/ 2026-04-06T00:00:00Z 2026-09-26T00:00:00Z

Color-coded connections and a confirmation before destructive SQL stop you running DROP TABLE on production. How to set up both guardrails.

https://jamsql.com/blog/manage-sql-server-agent-jobs-mac-linux/ 2026-03-20T00:00:00Z 2026-09-26T00:00:00Z

The msdb queries and procedures to list SQL Server Agent jobs, read job history, and start, stop, or create jobs from any client on Mac, Linux or Windows.

https://jamsql.com/blog/ai-skills-sql-databases-claude-code-codex/ 2026-03-19T00:00:00Z 2026-07-20T00:00:00Z

Teach AI agents to query SQL databases with a single skill file. Works with Claude Code, Codex CLI, Cursor, GitHub Copilot, and any MCP agent.

https://jamsql.com/blog/plsql-debugging-cross-platform/ 2026-03-19T00:00:00Z 2026-07-20T00:00:00Z

For 8+ years, no cross-platform tool had a real PL/SQL debugger. DBeaver couldn't, Toad was Windows-only. Here's how Jam SQL Studio fills the gap.

https://jamsql.com/blog/ssms-alternatives-mac/ 2026-03-13T00:00:00Z 2026-10-05T00:00:00Z

There is no SSMS download for Mac: SSMS 22 is Windows-only. What works instead on Apple Silicon and Intel Macs: a Windows VM, VS Code or a Mac SQL client.