Troubleshooting of PostgreSQL: Difference between revisions

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Troubleshooting of PostgreSQL
Troubleshooting of [https://www.postgresql.org/ PostgreSQL]


== How to fix Syntax error: 7 ERROR:  LIMIT #,# syntax is not supported ==
== Troubleshooting of PostgreSQL ==
=== How to fix Syntax error: 7 ERROR:  LIMIT #,# syntax is not supported ===
Query syntax mer error
Query syntax mer error
<pre>
<pre>
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</pre>
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Correct query syntax
Correct query syntax<ref>[http://www.sqlines.com/postgresql/limit_offset PostgreSQL Queries - OFFSET and LIMIT - Guide, Examples and Alternatives - SQLines Tools]</ref>
<pre>
<pre>
SELECT *  
SELECT *  
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</pre>
</pre>


== How to fix ERROR:  operator does not exist: ` character varying ==
=== How to fix ERROR:  operator does not exist: ` character varying ===
The following SQL query has a syntax error:
The following SQL query has a syntax error:
<pre>
<pre>
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</pre>
</pre>


== How to fix ERROR: argument of WHERE must be type boolean, not type integer ==
=== How to fix ERROR: argument of WHERE must be type boolean, not type integer ===
Query syntax mer error
Query syntax mer error
<pre>
<pre>
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</pre>
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== How to fix the ERROR: column "count" does not exist ==
=== How to fix the ERROR: column "count" does not exist ===
The following SQL query has a syntax error:
The following SQL query has a syntax error:
<pre>
<pre>
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having count(*) >= 2
having count(*) >= 2
</pre>
</pre>
=== How to fix: The numeric column data all became null after imported ===
[[Troubleshooting of Navicat for PostgreSQL]]
=== pgAdmin 4 on macOS Has No Autocomplete for Field or Table Names ===
[https://www.pgadmin.org/download/ pgAdmin] 4 has autocomplete built in by default, but it sometimes needs to be triggered manually or configured first.
'''How to trigger it'''
In the Query Tool, press `Ctrl / Cmd + Space`. However, on macOS, `Ctrl + Space` is reserved for switching input methods, and `Cmd + Space` opens Spotlight, so the shortcut conflict likely prevents the autocomplete menu from appearing. This menu is what normally shows suggestions for tables, columns, schemas, and keywords.
'''How to make autocomplete appear as you type'''
# Windows / Linux: Go to File → Preferences → Query Tool → Auto Completion, and make sure "Keywords autocomplete?" is checked.
# Mac: Go to pgAdmin 4 → Preferences → Query Tool → Auto Completion, and make sure "Keywords autocomplete?" is checked.


== Further reading ==
== Further reading ==
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<references />
<references />


== The numeric column data all became null after imported ==
 
[[Troubleshooting of Navicat for PostgreSQL]]


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