mysql

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Updated4/30/2026

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RELATES_TOProblem

But no error is found... — I'm trying to use Psalm to detect SQL Injections. Tension: I have no config file. Outcome: I edited the config file `psalm.xml`.

AFFECTSRootCause

This file tells Vercel how to build and serve your application. — Make sure you have a vercel.json file in your project root. Tension: I'm still facing the 404 error.

AFFECTSRootCause

mysqlclient needs MySQL client build flags and a compatible Python/runtime setup during wheel build

AFFECTSRootCause

SQLAlchemy Interval type does not provide date arithmetic operations on platforms which do not support interval types natively

AFFECTSRootCause

I have no config file — On `psalm` tag I added the attribute `runTaintAnalysis="true"`. Outcome: I edited the config file `psalm.xml`.

AFFECTSSolution

I edited the config file `psalm.xml` — I enabled the `pdo` extension. Outcome: And now I just run the commande like so.

AFFECTSRootCause

all your data will look like a standard mariadb/mysql table — The appwrite database is stored in a Mariadb in the Docker network. Tension: it is never open to access from outside. Outcome: If you don't do anything special.

AFFECTSRootCause

can't find the endpoint — React app successfully gets and posts from/to Spring Boot JPA MySQL db. Tension: delete fails with 404. Outcome: endpoint.

AFFECTSRootCause

The vowels are counted as equals as their accented counterparts. Tension: There are a number of pitfalls with collation, so be careful. Outcome: Some people also say there's a secondary sort rule for these short/long vowel pairs.

AFFECTSRootCause

Before persisting the JSON string, Hibernate validates its length against the defined column size (e.g., `VARCHAR(2000)`) — persisting the JSON string. Tension: If the content exceeds this limit, it throws a `Data too long for column` exception. Outcome: Hibernate validates its length against the defined column size.

AFFECTSRootCause

The url I was using was "jdbc:mysql://192.168.56.1:3306/my_database" — The actual IP address shown on MySQL workbench for the server is 192.168.1.60. Tension: I have no idea how the program was even connecting to the database when it was given the wrong IP address. Outcome: I corrected it.

AFFECTSRootCause

You can assert that by temporarily adding a pause to your task after connecting. Tension: It's usually more like 100. Outcome: You can assert that by temporarily adding a pause to your task after connecting.

AFFECTSRootCause

they can't run instructions in parallel beyond the OS capability. — VTs share a native thread. Tension: it should have helped, IF they were not hooked on mysql internal synchronized blocks. Outcome: Mysql driver 9.0.0+ (currently 9.1.0) has ReentrantLock(s) now and it should work.

AFFECTSRootCause

the starter guide has references to `URL`, `USER` variables — from the imports, suggests these are available from: `org.hibernate.cfg.AvailableSettings.*`. Tension: However, they are actually located in an inherited class: `org.hibernate.cfg.JdbcSettings`. Outcome: `import org.hibernate.cfg.JdbcSettings._`.

AFFECTSRootCause

java.sql.Timestamp.toString() truncates trailing zeroes in fractional seconds

AFFECTSRootCause

the necessary generated sources are created automatically. This works inside of the IDE, but it fails outside of it. — When running "./mvnw clean package". Tension: This works inside of the IDE, but it fails outside of it. Outcome: that triggers the creation of the generated sources before packaging.

AFFECTSRootCause

you didn't add a space at the end of each line — all lines will be merged without any space. Tension: `Contact_Info` and `add` is connected without space and that is a syntax error. Outcome: all lines will be merged without any space, like this `alter table Contact_Infoadd column`.

REQUIRESSolution

Use `LONGTEXT` to handle large JSON. Tension: Data too long for column 'value'. Outcome: ALTER TABLE your_table MODIFY COLUMN value LONGTEXT.

REQUIRESSolution

cast(dt as char) — select id, dt, cast(dt as char) from test.t. Tension: the non-cast `dt` column truncates trailing zeroes. Outcome: the column preserves trailing zeroes when I cast it to CHAR.

PERTAIN_TOProblem

E and É are treated as equals — for example, E and É are treated as equals. Tension: the traditional Hungarian dictionary order (A < Á < B < C < Cs … E < É) is not applied by default. Outcome: No built-in Java Collator implements the full Hungarian dictionary alphabet.

OCCURS_ONProblem

Outcome: Use `LONGTEXT` to handle large JSON.

OCCURS_ONProblem

Unable to get java.sql.Driver from DriverManager — When I try to initiate the database. Tension: I have written a Scala+AKKA api using Scala 3. Outcome: This fixed the above issue, so I'm marking this as resolved.

OCCURS_ONProblem

datetime(3) values lose trailing .000 fractional seconds when read back, breaking parsing

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